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Ocular Therapeutics
Ashok Garg
SECTION 1: FUNDAMENTALS AND PRELIMINARY CONSIDERATIONS IN OCULAR THERAPEUTICS
1:
Ocular Defense System
PHYSICAL PROTECTION
PHYSIOLOGICAL PROTECTION
Outer Lipid Layer
Middle Aqueous Layer
Inner Mucin Layer
2:
Tear Film Physiology
INTRODUCTION
Superficial Lipid Layer
Middle Aqueous Layer
Posterior Mucin Layer
TEAR FILM FORMATION DYNAMICS
NORMAL TEAR DRAINAGE
TEAR COMPOSITION
PHYSICAL PROPERTIES OF TEARS
Tear pH
Osmotic Pressure
Other Physical Properties of Tear (Table 2.2)
CHEMICAL COMPOSITION OF TEAR FLUID
Lipids
Cholesterol
Proteins
Tear Albumin
Lysozyme
Lactoferrin
Transferrin
Ceruloplasmin
Immunoglobulins
Complement
Glycoproteins
Antiproteinases
Metabolites
Glucose
Urea
Amino Acids
Lactate
Histamine
Prostaglandins
Catecholamines, Dopamine, Noradrenaline and Dopa
Electrolytes and Hydrogen Ions
Sodium
Calcium
Magnesium
Chloride
Bicarbonate
Enzymes
Enzymes of Energy Producing Metabolisms
Lactate Dehydrogenase
Lysosomal Enzymes
Amylase
Peroxidase
Plasminogen Activator
Collagenase
Drugs Excreted in Tears
APPLIED PHYSIOLOGY
HYPOSECRETION OF TEARS
Diagnostic Tests for Tear Hyposecretions (Table 2.10)
Tear Film Break-up Time (BUT)
Schirmer's Test
Vital Dye Staining
Lysozyme Assay
Tear Globulin Assay
Tear Osmolarity
Biopsy of the Conjunctiva
HYPERSECRETION OF TEARS
Physiological Diagnostic Test for Hypersecretions
Jones I (Primary) Test
Jones II (Secondary Irrigation) Test
Fluorescein Dye Disappearance Test
Special Tests
Intubation Dacryocystography
Scintillography (Radionuclide Testing)
Color Doppler Scanography
3:
Aqueous Humor Dynamics
INTRODUCTION
BLOOD-AQUEOUS BARRIER
Breakdown of Blood-Aqueous Barrier
AQUEOUS HUMOR FORMATION
Diffusion
Active Secretion
Ultrafiltration
AQUEOUS HUMOR FORMATION REGULATION (CONTROL)
RATE OF FLOW OF MOVEMENTS OF AQUEOUS HUMOR
Thermal Circulation
Bulk Flow
ROUTES OF AQUEOUS OUTFLOW (ESCAPE)
Trabecular Meshwork Outflow (Conventional Outflow)
Vacuolation Theory
Uveoscleral Outflow Pathways
AQUEOUS HUMOR COMPOSITION
Physical Properties
Osmolarity
Exchange of Substances between Aqueous Humor and Surrounding Tissues
Chemical Composition of Aqueous Humor
Proteins
Immunoglobulins
Coagulation and Cell Growth Inhibitors
Crystalline Lens Proteins
Lipids
Noncolloidal Composition
Lactic Dehydrogenase
Miscellaneous Substances
FUNCTIONS OF AQUEOUS HUMOR
4:
Routes of Administration and Drug Delivery Systems in Ophthalmology
LOCAL APPLICATION
Methods of Local Application of Drugs
Application to the Corneal Surface
Membrane Bound Devices
Ocusert System
Drug Impregnated Inserts
Hydrogel Contact Lens Delivery
Osmotic Pumps
Periocular Administration
Subconjunctival Route
Retrobulbar Route
Intracameral Administration
Intravitreal Administration
Parabulbar (Flush) Administration
Peribulbar Administration
Direct Injection into the Globe
SYSTEMIC ADMINISTRATION
Medications Forms Used in Ophthalmology
Solutions and Suspensions
Ointments
Gels
Sprays
Lid Scrubs
Medication Devices Used in Ophthalmology
Contact Lenses
Corneal Shields
Cotton Pledgets
Filter Paper Strips
Artificial Tear Inserts
Membrane Bound Inserts
Practical Tips for Use of Various Ophthalmic Medications
5:
Microorganisms and Ocular Diseases
INTRODUCTION
BACTERIA
FUNGI
VIRUSES
DNA Viruses
RNA Viruses
PARASITES
COMMON MICROBIOLOGICAL STAINS USED IN OPHTHALMOLOGY
COMMON OPHTHALMIC CULTURE MEDIA AND USAGE (TABLE 5.1)
NORMAL MICROBIAL FLORA OF THE EYE
Resident Flora
Transient Flora
Gram-positive Bacteria
Gram-negative B acteria
Enteric Bacilli
Fungi
6:
Unique Ocular Drug Delivery Systems
INTRODUCTION
UNIQUE OCULAR DRUG DELIVERY SYSTEMS
Corneal Collagen Shield
Development of Collagen Shield
Principle and Properties
Therapeutic Approach in Ophthalmology
Conclusion
Iontophoresis
Principle and Properties
Device and Procedure
Therapeutic Approaches in Ophthalmology
Conclusion
Liposomes
Principle and Property
Therapeutic Approaches in Ophthalmology
Conclusion
Dendrimers
Property and Principle
Potential Application of a Unique Drug Delivery System
Conclusion
OTHER OCULAR DRUG DELIVERY SYSTEMS
Pumps
Two-chamber Pump
Osmotic Pump
Adjustable Pump
Ocular Inserts
Criteria for Successful Ocular Inserts
Particulate Polymers
Mucoadhesive Polymers
Penetration Enhances
CONCLUSION AND NEW PERSPECTIVES
7:
Antibacterial Therapy
INTRODUCTION
ROUTES OF ANTIMICROBIAL ADMINISTRATION IN OPHTHALMIC PRACTICE
SELECTION OF ANTIMICROBIAL AGENTS
INDICATIONS FOR ANTIMICROBIAL THERAPY
MECHANISMS OF RESISTANCE TO ANTIBIOTICS
STEPS TO BE TAKEN TO AVOID ANTIMICROBIAL RESISTANCE
ANTIMICROBIAL COMBINATION THERAPY
Indications of Combination Therapy
Disadvantages of Antimicrobial Combination
MICROBES CAUSING OCULAR INFECTIONS
CLASSIFICATION OF ANTIBACTERIAL DRUGS (ACCORDING TO MECHANISM OF ACTION)
DRUGS THAT INHIBIT BACTERIAL CELL WALL SYNTHESIS
BETA-LACTAM ANTIBIOTICS
Mechanism of Action
Mode of Resistance
Penicillins
Penicillin G (Benzyl Penicillin/Crystalline Penicillin)
Penicillin V (Phenoxymethyl Penicillin)
Penicillinase Resistant Penicillins (Methicillin, Cloxacillin, Oxacillin, Dicloxacillin, Nafcillin)
Aminopenicillins (Ampicillin, Amoxycillin)
Carboxypenicillins (Carbenicillin, Ticarcillin)
Ureidopenicillins (Piperacillin, Mezlocillin, Azlocillin)
Adverse Effects of Penicillins
β-Lactamase Inhibitors
Cephalosporins
First Generation Cephalosporins
Second Generation Cephalosporins
Third Generation Cephalosporins
Fourth Generation Cephalosporins
Fifth Generation Cephalosporins
Adverse Effects of Cephalosporins
Ocular Uses of Cephalosporins
Monobactams—Aztreonam
Carbapenems
Adverse Effects of Carbapenems
GLYCOPEPTIDE ANTIBIOTICS
Mechanism of Action
Mode of Resistance
Antimicrobial Spectrum
Adverse Effects
FOSFOMYCIN
BACITRACIN
DRUGS ATTACKING BACTERIAL CELL MEMBRANE
Daptomycin
Polymixin-B, Colistin and Tyrothricin
Dosage of Polymixin-B
DRUGS THAT INHIBIT BACTERIAL PROTEIN SYNTHESIS
Aminoglycosides
Mechanism of Action
Antimicrobial Spectrum
Mode of Resistance
Systemic Uses
Adverse Effects
INDIVIDUAL DRUGS
Gentamicin
Dosage
Ocular Uses
Tobramycin
Dosage
Uses
Amikacin
Dosage
Ocular Uses
Neomycin
Dosage
Sisomycin
Dosage
Netilmicin
Dosage
Kanamycin
Dosage
Framycetin
Streptomycin
SPECTINOMYCIN
TETRACYCLINES
Classification
Mechanism of Action
Antimicrobial Spectrum
Mode of Resistance
Adverse Effects
Dosage
Systemic Uses of Tetracyclines
Ocular Uses of Tetracyclines
GLYCYLCYCLINE—TIGECYCLINE
CHLORAMPHENICOL
Antimicrobial Spectrum
Mechanism of Action
Mode of Resistance
Dosage
Ocular Uses
Adverse Effects
MACROLIDES
Mechanism of Action
Mode of Resistance
INDIVIDUAL DRUGS
Erythromycin
Dosage
Adverse Effects
Roxithromycin
Clarithromycin
Adverse Effects
Azithromycin
Dosage
Adverse Effect
Spiramycin
Uses of Macrolides
KETOLIDES—TELITHROMYCIN
Dosage
Adverse Effects
OXAZOLIDINONES—LINEZOLID
Antimicrobial Spectrum
Mechanism of Action
Dosage
Adverse Effects
Uses
LINCOSAMIDES—CLINDAMYCIN
Dosage
Adverse Effect
Uses
STREPTOGRAMINS— QUINUPRISTIN/ DALFOPRISTIN
RETAPAMULIN
FUSIDIC ACID
DRUGS ATTACKING BACTERIAL DNA
Fluoroquinolones
Classification of Quinolones
Mechanism of Action
Antimicrobial Spectrum
Mode of Resistance
Dosage
Systemic Uses of Fluoroquinolones
Ocular Uses of Fluoroquinolones
Adverse Effects of Systemic Fluoroquinolones
Adverse Effects of Topical Fluoroquinolones
NITROIMIDAZOLES
Mechanism of Action
Antimicrobial Spectrum
Dosage
Adverse Effects
Uses
DRUGS AFFECTING BACTERIAL INTERMEDIATE METABOLISM
Sulfonamides
Classification
Mechanism of Action
Antimicrobial Spectrum
Mode of Resistance
COTRIMOXAZOLE (TRIMETHOPRIM-SULFAMETHOXAZOLE)
Dosage of Cotrimoxazole
Adverse Effects of Sulfonamides and Cotrimoxazole
Clinical Uses of Sulfonamides and Cotrimoxazole
MISCELLANEOUS AGENTS
MUPIROCIN
ANTIMICROBIAL PEPTIDES
Defensins
Cecropins
Magainins
USE OF ANTIBIOTICS IN IRRIGATING SOLUTIONS FOR INTRAOCULAR SURGERY
REASONS FOR FAILURE IN OCULAR ANTIBIOTIC TREATMENT
CONCLUSION
8:
Anti-inflammatory Therapy
CORTICOSTEROIDS
Indications
Contraindications
Administration and Dosage
Hydrocortisone
Prednisolone
Dexamethasone
Betamethasone
Triamcinolone
Progesterone like Agents
Rimexolone
Loteprednol Etabonate
Rimexolone
Indications
Contraindications
Dosage
Adverse Reactions
Fluorometholone
Mechanism of Action
Indications
Contraindications
Dosage and Administration
Loteprednol Etabonate
Difluprednate
Topical Steroid Antibiotic Combinations
Dosage and Administration
Adverse Reactions
Modes of Corticosteroid Delivery
Systemic Corticosteroids
NONSTEROIDAL ANTI-INFLAMMATORY DRUGS
Classification and Structure of NSAIDs
Mechanism of Action
Type I Inhibitors
Type II Inhibitors
Arachidonic Acid Metabolites and Inflammation
Pharmacokinetics
Ocular Indications for use of NSAIDs
Maintenance of Intraoperative Mydriasis
Reduction of Postoperative Inflammation
Prevention and Treatment of Aphakic and Pseudophakic Cystoid Macular Edema
In summary
Uveitis
Scleritis and Episcleritis
Allergic and Giant Papillary Conjunctivitis
Reduction of Discomfort after Refractive Surgery
VARIOUS TOPICAL NSAIDS USED COMMONLY IN OPHTHALMIC PRACTICE WORLDWIDE
PHENYLALKANOIC ACIDS
Flurbiprofen
Dosage
Adverse Reactions
Ketorolac Tromethamine
Indications and Usage
Dosage and Administration
Adverse Reactions
Suprofen
Dosage
INDOLES
Indomethacin
PHENYLACETIC ACID
Diclofenac Sodium
Indications
Dosage and Administration
Role of Ocular Diclofenac in Therapy
Adverse Reactions
Bromfenac
Clinical Indications
Dosage
Adverse Reactions
Nepafenac
Dosage
Indications
Adverse Reactions
General Local and Systemic Toxicities of NSAIDs
IMMUNOSUPPRESSIVE AGENTS IN OPHTHALMOLOGY
Classification of Immunosuppressive Agents Used in Ophthalmology
Alkylating Agents
Clinical Indications
Dosage
Antimetabolites
Clinical Indications
Dosage
Adverse Effects of Azathioprine
Adverse Effects of Methotrexate
Cyclosporin A
Clinical Indications for Cyclosporin A
Relative Indications
Dosage
Adverse Effects
Infliximab
Clinical Indications in Ophthalmology
Dosage
Adverse Effects
Vascular Endothelial Growth Factors Inhibitors: Ranibizumab, Bevacizumab, Pegaptanib Sodium
Clinical Indications
Dosage
Adverse Effects
Ocular Drug Toxicity of Immunosuppressive Agents used in Ophthalmic Conditions
9:
Antiviral Therapy
INTRODUCTION
DNA VIRUSES
RNA VIRUSES
MECHANISM OF VIRAL INFECTION/MULTIPLICATION
GENERAL MECHANISMS OF ACTION OF ANTIVIRAL AGENTS
CLASSIFICATION OF ANTIVIRAL DRUGS
Drugs Active Against Herpes Simplex Virus and Herpes Zoster Virus
Drugs Active Against Cytomegalovirus
Drugs Active Against Influenza Virus
Drugs Active Against Hepatitis Virus
Drugs Active Against Respiratory Syncytial Virus
Drugs Active Against Human Immunodeficiency Virus
ANTIHERPES AGENTS
Idoxuridine
Dosage
Adverse Effects
Vidarabine (Ara-A)
Dosage
Adverse Effects
Trifluridine
Dosage
Adverse Effects
Ocular Uses
Bromovinyl Deoxyuridine
Dosage
Adverse Effects
Acyclovir
Dosage
Intravitreal Dosage
Uses
Resistance to Acyclovir
Adverse Effects
Valacyclovir
Famciclovir
Dosage and Indication
Penciclovir
DRUGS ACTIVE AGAINST CYTOMEGALOVIRUS
Ganciclovir
Indications
Dosage and Adverse Effects
Ganciclovir Intravitreal lmplant
Valganciclovir
Foscarnet Sodium (Phosphonoformic Acid)
Indications
Dosage
Adverse Effects
Cidofovir
Indications
Contraindications
Dosage
Adverse Effects
Fomivirsen
Indication
Dosage and Administration
Instructions for Intravitreal Injection
Adverse Effects
DRUGS ACTIVE AGAINST HEPATITIS VIRUS
Interferons
Mechanism of Action of α-interferons
Indications
Dosage
Adverse Effects
Adefovir
Tenofovir
Lamivudine
Entecavir
Ribavirin
Boceprevir and Telaprevir
DRUGS USED IN HIV INFECTION
Nucleoside Reverse Transcriptase Inhibitors
Mechanism of Action
Adverse Effects
Dosage
Non-nucleoside Reverse Transcriptase Inhibitors
Adverse Effects
Dosage
Protease Inhibitors
Adverse Effects
Dosage
ENTRY INHIBITOR (MARAVIROC)
FUSION INHIBITOR (ENFUVIRTIDE)
INTEGRASE INHIBITOR (RALTEGRAVIR)
CLINICAL USE OF ANTIRETROVIRAL THERAPY IN OPHTHALMOLOGY
DRUGS ACTIVE AGAINST INFLUENZA VIRUS
Amantadine and Rimantadine
Oseltamivir and Zanamivir
10:
Antifungal Therapy
INTRODUCTION
FUNGI CAUSING OCULAR INFECTIONS
Yeast Fungi
Filamentous Fungi
ANTIFUNGAL DRUGS
Classification
POLYENES
Mechanism of Action
Amphotericin B
Antifungal Spectrum
Dosage
Adverse Effects
Nystatin
Dosage
Natamycin
Dosage
Adverse Effects
ANTIMETABOLITE (FLUORINATED PYRIMIDINE)
Flucytosine
Mechanism of Action
Dosage
Adverse Effects
AZOLE DERIVATIVES
Clotrimazole
Dosage
Adverse Reactions
Miconazole
Dosage
Adverse Effects
Econazole
Dosage
Ketoconazole
Dosage
Adverse Effects
Fluconazole
Dosage
Adverse Effects
Itraconazole
Dosage
Adverse Effects
Voriconazole
Dosage
Adverse Effects
Posaconazole
Dosage (Oral)
Adverse Effects
ALLYLAMINES
Terbinafine
Mechanism of Action
Dosage
Adverse Effects
Naftifine
Butenafine
ECHINOCANDINS
Mechanism of Action
Antifungal Spectrum
Individual Drugs
Uses of Echinocandins
SILVER COMPOUNDS
Silver Sulfadiazine
Dosage
Adverse Effects
11:
Antiglaucoma Therapy
VARIOUS FORMS OF OCULAR DRUG ADMINISTRATION
AQUEOUS SOLUTIONS
SUSPENSIONS
OINTMENTS
GELS
OCULAR INSERTS
DRUG COMPLIANCE
Drugs for Medical Therapy of Glaucoma
Beta-Adrenergic Antagonists
Side Effects
Ocular Side Effects
Systemic Side Effects
Beta-blockers in Clinical Ophthalmic Use
Timolol
Betaxolol
PROSTAGLANDINS (HYPOTENSIVE LIPIDS; HLS)
Efficacy
Side Effects
Ocular Side Effects
Systemic Side Effects
Drugs in Clinical Use
Latanoprost
Bimatoprost
Travoprost
CARBONIC ANHYDRASE INHIBITORS
Mechanism of Action
Side Effects
Ocular
Systemic
Drugs in Clinical Use
Acetazolamide (Diamox)
Methazolamide (Neptazane)
Dorzolamide
Brinzolamide
Sympathomimetic Agonists
Epinephrine
Dipivefrin
α2-ADRENERGIC AGONISTS
Apraclonidine
Brimonidine
Side Effects
CHOLINERGIC DRUGS
Mechanisms of Action
Angle-closure Glaucoma
Open-angle Glaucoma
Side Effects
Ocular
Systemic
Drugs in Clinical Use
Direct-acting Agents
Hyperosmotic Agents
Side Effects
Drugs in Clinical Use
Oral Agents
Intravenous Agents
12:
Antiallergy Therapy
INTRODUCTION
TYPE 1 HYPERSENSITIVITY REACTIONS
Hay Fever Conjunctivitis
Vernal Conjunctivitis
Atopic Keratoconjunctivitis
Giant Papillary Conjunctivitis
ANTIALLERGY MEDICATION
TOPICAL MAST CELL INHIBITORS
Cromolyn Sodium (Sodium Cromoglycate)
Disodium Cromoglycate
Lodoxamide
Nedocromil
Ketotifen Fumarate
Olopatadine Hydrochloride
Azelastine Hydrochloride
ANTIHISTAMINES
Levocabastine Hydrochloride
Emedastine Difumarate
Decongestants
Phenylephrine
Imidazole Derivatives
ORAL ANTIHISTAMINES
Levocetirizine
Desloratadine
Fexofenadine
NSAIDs (ANTIPROSTAGLANDIN THERAPY)
TOPICAL STEROIDS
TOPICAL IMMUNOSUPPRESSORS
Cyclosporine
RECENT ADVANCES IN IMMUNOSUPPRESSIVE THERAPY
Liposomes
13:
Local Anesthetic Agents
INTRODUCTION
LOCAL ANESTHETICS (INJECTABLES)
Indications
Contraindications
Precautions during Local Injectable Anesthesia
Adverse Reactions of Local Injectable Anesthetics
CNS Adverse Reactions
Cardiovascular Symptoms of Toxicity
Allergic Adverse Reactions
Overdosage
ESTERS
AMIDES
LOCAL ANESTHETICS (TOPICAL)
Indications
Contraindications
Precautions
Adverse Reactions
Benoxinate HCl (Oxybuprocaine)
Proparacaine
Tetracaine
Lidocaine HCl
Centbucridine
Cocaine
Phenocaine
Dimethocaine
Piperocaine
Dibucaine
Naepaine
Butacaine
SYNOPSIS OF OPHTHALMIC USES OF LOCAL ANESTHETICS
Local Injectable Anesthetics
Topical Anesthetics
14:
Ophthalmic Viscosurgical Devices and Other Ocular Surgical Adjuncts
INTRODUCTION
VISCOELASTIC SUBSTANCES
CRITERIA FOR SELECTION OF VISCOELASTIC MATERIAL
Optical Properties
Surface Tension
Viscosity
Elasticity
Viscoelasticity
Miscellaneous
ROLES OF VISCOELASTIC SUBSTANCES
INDICATIONS FOR VISCOELASTIC SUBSTANCES
COMMERCIALLY AVAILABLE VISCOELASTIC SUBSTANCES
Hyaluronic Acid
Sodium Hyaluronate
Indications
Administration and Dosage
Dosage
Advantages of Hyaluronic Acid in Ophthalmic Viscomicrosurgery
Adverse Reactions
Precautions
Hyalectin (IAL)
Sodium Hyaluronate and Chondroitin Sulfate Solution
Viscoat
Chondroitin Sulfate
Methylcellulose
Indications for Use of Methylcellulose
Precautions
Presentation
Adverse Reactions
Polyacrylamide
Collagen
FUTURE VISCOELASTICS
IRRIGATING SOLUTIONS
Intraocular Irrigating Solutions
Salient Features of BSS Plus Solution
Extraocular Irrigating Solutions
SURGICAL ENZYMES
Alpha Chymotrypsin
Urokinase
Hyaluronidase
SURGICAL ADJUNCTS
Fractionated Purified Silicone Oil
Visual Outcome and Clinical Results
Botulinum Toxin Type A
Pharmacokinetics
Administration
Preparation
Dilution Technique
Precautions
Adverse Reactions
Pharmacokinetics
CHELATING AGENTS, COLLAGENASE INHIBITORS and MUCOLYTICS
Ethylenediaminetetra Acetate
Laevo-cysteine
Acetylcysteine
CAUSTIC PREPARATIONS IN OPHTHALMOLOGY
Carbolic Acid
Alcohol
Hydrogen Peroxide
CYANOACRYLATE TISSUE ADHESIVES IN OPHTHALMOLOGY
Indications
Dosage and Application
Adverse Effects
15:
Mydriatics and Cycloplegics
INTRODUCTION
MYDRIATIC ADRENERGIC AGENTS (SYMPATHOMIMETIC AGENTS)
Adrenaline (Epinephrine)
Coccaine Hydrochloride
Phenylephrine
Hydroxyamphetamine
CHOLINERGIC ANTAGONIST AS MYDRIATIC AGENTS
CYCLOPLEGIC MYDRIATICS
Mechanism of Action
Indications
Contraindications
Precautions
Adverse Reactions of Parasympatholytic Agents
Overdosage
Atropine Sulfate
Homatropine
Scopolamine
Cyclopentolate HCl
Tropicamide
MYDRIATIC COMBINATIONS
16:
Ophthalmic Dyes
INTRODUCTION
FLUORESCEIN SODIUM
Clinical Characteristics
Topical
Injection
Unlabeled Use
Contraindications
Topical Formulations
Precautions
FLUOREXON
ROSE BENGAL
LISSAMINE GREEN
INDOCYANINE GREEN
Indications
Precautions
TRYPAN BLUE
VERTEPORFIN (VISUDYNE)
Verteporfin
17:
Ocular Lubricants and Artificial Tear Solutions
INTRODUCTION
ARTIFICIAL TEAR SOLUTIONS
Methylcellulose or Ethylcellulose Base
Solutions Containing
POLYVINYL ALCOHOL BASE SOLUTIONS
LONGER LASTING MUCOADHESIVE OR INCREASED VISCOSITY AGENTS
POLYVINYL PYRROLIDONE POLYMER BASE TEAR SOLUTION
Adverse Reactions of Artificial Tear Solutions
OINTMENTS
Preparations
OCULAR INSERTS (SOLID DEVICES)
SOFT CONTACT LENS THERAPY
PUNCTAL PLUGS
COLLAGEN IMPLANTS
MISCELLANEOUS PREPARATIONS
RECENT ADVANCES IN NEW POLYMERS FOR DRY EYE SYNDROME
Stimulation of Tears
New Artificial Tear Preparations
New Polymers
18:
Topical Immune Therapy
INTRODUCTION
OCULAR DEFENSE SYSTEM AND IMMUNITY
INDICATIONS FOR TOPICAL IMMUNE THERAPY
Mechanism of Action
DOSAGE
CONTRAINDICATION
ADVERSE REACTIONS
SUMMARY
19:
Topical Hyperosmotic Agents
INTRODUCTION
MAJOR CAUSES OF CORNEAL EDEMA
Mechanism of Action
VARIOUS TOPICAL HYPEROSMOTIC AGENTS USED IN OPHTHALMOLOGY
Glycerine Solution
20:
Antiretroviral Drug Therapy of Ocular Infections in AIDS
INTRODUCTION
HIV-RELATED RETINOPATHY
OPPORTUNISTIC INFECTIONS OF THE EYE
Cytomegalovirus Retinitis
Cryptococcal Infection
Toxoplasma Infection
Pneumocystis carinii Choroiditis
NONOPPORTUNISTIC INFECTIONS
Herpes Zoster Ophthalmicus
Herpes Simplex
Viral Disease of Eyelids
Syphilitic Uveitis
Choroidal Tuberculosis
TUMOR INVOLVEMENT
Kaposi's Sarcoma
Lymphoma of Orbit
Squamous Cell Carcinoma of Conjunctiva
NEURO-OPHTHALMOLOGICAL MANIFESTATIONS
CUTANEOUS HYPERSENSITIVITY REACTIONS
HIV IN OCULAR STRUCTURES
OCULAR MANIFESTATIONS OF HIV INFECTIONS IN CHILDREN
ANTIRETROVIRAL THERAPY OF OCULAR INFECTIONS IN AIDS PATIENTS
Nucleoside Reverse Transcriptase Inhibitors (NRTIs)
Non-nucleoside Reverse Transcriptase Inhibitors (NNRTIs)
Protease Inhibitors
Antiviral Metabolites
CYTOMEGALOVIRUS INFECTION
Ganciclovir
Intravenous Dosage
Oral Ganciclovir
Intravitreal Injection of Ganciclovir
Ganciclovir Implant (Intravitreal Devices)
Foscarnet
Treatment Efficacy
BREAKTHROUGH RETINITIS
Newer Modalities
Cidofovir/Zidofovir (HPMPC)
Protease Inhibitors in CMVR
TOXOPLASMA INFECTION
Complications
HERPES ZOSTER OPHTHALMICUS
MYCOBACTERIUM TUBERCULOSIS
Dosage
MYCOBACTERIUM AVIUM INTRACELLULARE
OCULAR SYPHILIS
ACUTE RETINAL NECROSIS
PNEUMOCYSTIS CARINII CHOROIDITIS
Fungal Infections
RECENT ADVANCES IN ANTIRETROVIRAL DRUG THERAPY
Fomivirsen Sodium (Vitravene)
21:
Sterilization, Disinfection and Antiseptics in Ophthalmology
PHYSICAL METHODS
Dry Heat
Flaming
Incineration
Hot Air Oven
Moist Heat
Temperature below 100°C
Temperature at 100°C
Precautions during Autoclaving
Filtration
Ionizing Radiation
CHEMICAL METHODS
Ethylene Oxide (C2H4O)
Formalin
Precautions When using Formalin
SOAKING IN LIQUID CHEMICALS
Glutaraldehyde
Isopropyl Alcohol
Sodium Hypochlorite
Biguanides (Polyhexanide and Chlorhexidine) (Fig. 21.1)
Povidone Iodine (Halogens)
How to Use this Solution
Phenols
Acetone
Cetrimide
Betapropiolactone
Alcoholic Rub-in Hand Disinfectant
Cutasept
Concentrated Cold Sterilizer
Bacillocid
Bacillol 25
Baktolin 5.5
AIDS AND DISINFECTION IN RELATION TO OPHTHALMOLOGY
22:
Miscellaneous Drugs in Ophthalmology
INTRODUCTION
LID SCRUBS
Indications
Dosage and Administration
ASTRINGENT OPHTHALMIC SOLUTION
Indications
Administration and Dosage
OPHTHALMIC DIAGNOSTIC TEAR TEST STRIPS
Indications
Schirmer Tear Test Sterile Strips
Sno Test Strips
Zone-quick Thread Test
Administration and Dosage
Precautions
HAMAMELI'S OPHTHALMIC SOLUTION
BORIC ACID
INACTIVE INGREDIENTS IN OPHTHALMIC PRODUCTS
Preservatives
Viscosity-stimulating Agents
Antioxidants
Wetting Agents
Buffers
Tonicity Agents
Aminocaproic Acid
Liquid Perfluorocarbons
Indications and Administration
VISCOSURGICAL DEVICES
23:
Ocular Drug Toxicity: Complications
INTRODUCTION
Generalized Ocular Manifestations of Drug Toxicity
COMPLICATIONS OF TOPICAL ANTIMICROBIAL AGENTS
Systemic Complications
Aplastic Anemia
Stevens-Johnson Syndrome
Local Complications
Nonspecific Local Complications
Contact Dermatoconjunctivitis
Chronic Follicular Conjunctivitis
Punctate Marginal Keratitis
Keratitis Medicamentosa
Inhibition of Epithelial Wound Healing
Specific Local Complications
Sulfonamides
Amphotericin B
Idoxuridine
Propamidine
COMPLICATIONS OF STEROIDS
Corticosteroids
Topical Steroids
Dermatitis
Infection and Ulceration
Delayed Wound Healing
Cataracts
Elevated IOP (Steroid-induced Glaucoma)
Periocular Steroids
Systemic Steroids
Various Adverse Effects
Alternations in Lipid Metabolism
Coronary Risk Factors
Dermatological Effects
GIT Disorders
Osteoporosis
Myopathy
Leukocytic and Platelet Aberrations
Hematological Changes
Anaphylaxis
Renal Effects
General Effects
SYSTEMIC ADVERSE REACTIONS OF GLAUCOMA MEDICATIONS
Beta-adrenergic Blockers
Cardiovascular System Effects
Central Nervous System Effects
Dermatological Effects
Gastrointestinal Effects
Endocrine and Metabolic Effects
Respiratory Effects
Urogenital Effects
Carbonic Anhydrase Inhibitors
Central Nervous System Effects
Dermatological Effects
Gastrointestinal Tract Effects
Hematological Effects
Urogenital Effects
Sympathomimetic Agents
Parasympathomimetic Agents
Alpha-adrenergic Agonists
Prostaglandins
Hyperosmotic Agents
Antimetabolites
COMPLICATIONS OF TOPICAL OCULAR ANESTHETIC AGENTS
Adverse Effects
Direct Corneal Effects
Systemic and Noncorneal Effects
Central Nervous System—Adverse Reactions
Secondary Adverse Effects
Interference with Diagnostic Tests
Variability in Schirmer's Testing
Reduction of Microbial Recovery
Preclusion of Sequential Testing
Surface Keratopathy
Alterations of Ocular Response to Other Topical Agents
Changes in Epithelial Permeability
Prolonged Surface Contact
TOXICITY OF SURGICAL SOLUTIONS
Antiseptic Solutions
Irrigating Solutions Toxicity
Patients at Increased Risk
Formulation Problems and Toxicity
Reuse
Viscoelastic Solutions
Intraocular Pressure
Formulation Problems and Toxicity
Intraocular Inflammation
New Viscoelastic Solutions
Mydriatics and Miotics
Mydriatics
Miotics
Other Agents
Preservatives
Thrombin
Alpha-Chymotrypsin
Hyaluronidase
COMPLICATIONS OF CONTACT LENS SOLUTIONS
Solution Stability
Patient Sensitivity
Chemical and Lens Binding
Product Compatibility
COMPLICATIONS OF INTRAVENOUS FLUORESCEIN
CLASSIFICATION OF ADVERSE REACTIONS
Mild Adverse Reactions
Nausea and Vomiting
Extravasation
Inadvertent Intra-arterial Injections
Other Minor Reactions
Moderate Adverse Reactions
Skin Eruption
Syncope
Skin Necrosis
Severe Adverse Reactions
Cardiovascular Complications
Respiratory Complications
Death
DRUG-INDUCED OCULAR CICATRIZATION
Clinical Manifestations
Differential Diagnosis
Disease Stages
Treatment
SYSTEMIC DRUGS CAUSING OCULAR TOXICITY
Antimalarial Drugs
Chlorpromazine
Analgesics
Antiarthritic Drugs
Corticosteroids
Nonsteroidal Anti-inflammatory Drugs (NSAIDs)
General Anesthetic Agents
Antihistamines
Anti-infective Agents
Systemic Antibiotics
Antifungals
Antileprosy Drugs
Antiparasitics
Antituberculosis Drugs
Antineoplastic Drugs
Antianginal Drugs
antiarrhythmics
Antihypertensives
Antimigraine Agents
Cardiac Glycosides
Peripheral Vasodilators
Bronchodilators
Alcohols
Alcohol Antagonists
Anorexiants (Amphetamines)
Muscles Relaxants (Benzodiazepines)
Anticonvulsants
Antidepressants
Antipsychotics and Tranquilizers
Psychedelic Drugs
Sedatives and Hypnotics
Dermatological Preparations
Diuretics
Hyperosmotics
Gastrointestinal Drugs
Hormonal Drugs
Antihyperglycemics
Antithyroid Drugs
Oral Contraceptives
Neuromuscular Drugs
Myasthenia Gravis Drugs
Vaccines (DPT, Polio, Measles, Mumps-rubella, Smallpox, Rabies, Tetanus)
Vitamins
Sildenafil (Viagra)
Vigabatrin
Isotretinoin
Thioridazine
Amiodarone
24:
Topical and Systemic Ophthalmic Drugs with Common Dosages
ANTIBIOTIC THERAPY
Topical Antibiotic Solutions and Ointments
Usual Dosage
Systemic Antibiotics in Ophthalmology
Dosage
TOPICAL ANTI-INFLAMMATORY THERAPY
Corticosteroids
Corticosteroid Antibiotic Combinations
Topical Nonsteroidal Anti-inflammatory Drugs (NSAIDs)
Immunosuppressive Agents in Ophthalmology
Alkylating Agents
Antimetabolites
Cyclosporin A
ANTIVIRAL THERAPY
ANTIFUNGAL THERAPY
ANTIGLAUCOMA THERAPY
Miotics
Alpha-adrenergic Agonists
Sympathomimetics
Adrenergic Blocking Agents (Beta-blockers)
Carbonic Anhydrase Inhibitors
Prostaglandins
Ocular Hypotensive Lipids
Hyperosmotic Agents
Antimetabolites/Antifibroproliferative Agents
Neuroprotective and Neuroregenerative Agents
Alpha-2 Agonists
ANTIALLERGY THERAPY
Topical Mast Cell Inhibitors
Antihistamines
Usual Dose
Decongestants
Topical NSAIDs
Topical Steroids
Topical Immunosuppressors
LOCAL ANESTHETIC AGENTS
Injectable Agents
Esters
Amides
Topical Anesthetic Agents
MYDRIATICS AND CYCLOPLEGICS
Mydriatic Adrenergic Agents
Cholinergic Antagonist as Cycloplegic Mydriatics
Mydriatic Combinations
ARTIFICIAL TEARS AND LUBRICANTS
Methylcellulose or Ethylcellulose Base
Polyvinyl Alcohol-base Solutions
Longer Lasting Mucoadhesive or Increased Viscosity Agents
Polyvinylpyrrolidone Polymer-base Tear Solution
Ointments
Ocular Inserts (Solid Devices)
Punctal Plugs
Miscellaneous Preparations
OPHTHALMIC VISCOSURGICAL DEVICES
IRRIGATING SOLUTIONS
Intraocular Irrigating Solutions
BSS Containing
BSS Plus (Mix aseptically before use)
Extraocular Irrigating Solutions
SURGICAL ENZYMES
Chelating Agents and Mucolytics
Caustic Preparations
Cyanoacrylate Tissue Adhesive
SURGICAL ADJUNCTS
Fractionated Purified Silicone Oil
Polydimethyl Siloxane (Silicone Oil)
Povidone Iodine
Absorbable Gelatin Film
Botulinum Toxin Type A
TOPICAL IMMUNE THERAPY
TOPICAL HYPEROSMOTIC AGENT
Hypertonic Salt Agent
Glycerine Solution
ANTICATARACT THERAPY
Topical Agents
Systemic Therapy
Vitamin E Therapy
Antioxidant Therapy
Other Systemic Agents on Trials
MEDICAL THERAPY FOR ARMD (AGE-RELATED MACULAR DEGENERATION)
Antioxidants
Antiangiogenic Agents
Growth Factors
MEDICAL THERAPY FOR DIABETIC RETINOPATHY
OPHTHALMIC DYES
Fluorescein Sodium
Fluorexon
Rose Bengal
CONTACT LENS CARE PRODUCTS
Rigid Gas Permeable (RGP) Contact Lens Products
Soft (Hydrogel) Contact Lens Products
RECENT MULTIPURPOSE SOFT LENS CARE SYSTEMS
ANTIRETROVIRAL DRUGS IN OPHTHALMIC INFECTIONS
Nucleoside Reverse Transcriptase Inhibitors
Non-nucleoside Reverse Transcriptase Inhibitors
Protease Inhibitors
Antiviral Metabolities
Cytomegalovirus Infection
Toxoplasma Infection
Herpes Zoster Ophthalmicus
Mycobacterium Tuberculosis
Ocular Syphilis
Acute Retinal Necrosis
Fungal Infections
Recent Advances in Antiretroviral Drug Therapy
Fomivirsen Sodium (Vitravene)
OCULAR THERAPEUTICS IN REFRACTIVE SURGERY
Photorefractive Keratectomy
Preoperative Ocular Therapeutics
Postprocedure Ocular Therapeutic Module
Lasik Surgery
Preprocedure Therapeutic Medications
Postprocedure Therapeutic Modulation
Recent Update in Post PRK/Lasik Surgery Therapeutic Module
25:
Ocular Manifestations of Systemic Diseases
INTRODUCTION
VARIOUS SYSTEMIC DISEASES
Thermal, Chemical and Acid Burns
Alkali Burns
Ultraviolet Radiation
Infrared Radiation
Atomic Radiation
Atopic Dermatitis
Atopic Eczema
Hay Fever
Asthma
Urticaria
Acne Rosacea
Epidermolysis Bullosa
Cicatricial Pemphigoid
Erythema Multiforme (Stevens-Johnson Syndrome)
Ichthyosis
Incontinentia Pigmentii
Pemphigus
Psoriasis
Vogt-Koyanagi-Harada Syndrome
Xeroderma Pigmentosum
von Hippel's Disease
Ataxia Telangiectasia
Encephalotrigeminal Angiomatosis
Neurofibromatosis
Wyburn Syndrome
Ankylosing Spondylitis
Dermatomyositis
Reiter's Syndrome
Rheumatoid Arthritis
Sarcoidosis
Systemic Lupus Erythematosus
Varicella
Rubella (German Measles)
Vaccinia
Herpes Simplex
Herpes Zoster
Mumps
Infectious Mononucleosis
Influenza
Cytomegalic Inclusion Disease
Epidemic Keratoconjunctivitis
Gonorrhea
Diphtheria
Septicemia
Leprosy
Tuberculosis
Lymphogranuloma Venereum
Toxoplasmosis
Candida albicans
Histoplasmosis
Cryptococcus Infections
Cysticercosis
Echinococcus (Hydatid Cyst)
Toxocariasis
Trichinosis
Onchocerciasis
Turner's Syndrome
Anemias
Leukemias
Lymphomas
Multiple Myelomas
Sickle Cell Disease
Thalassemia
Thrombocytopenia
Arteriosclerosis
Hypertension
Toxemia of Pregnancy
Occlusive Vascular Diseases (Sudden)
Occlusive Vascular Diseases (Slow)
Venous Occlusive Diseases
Endocarditis
Aortic Arch Syndrome
Adrenals Cushing's Disease
Addison's Disease
Diabetes Mellitus
Hypoparathyroidism
Hyperthyroidism
Alcoholism
Liver Disease (Nutritional)
Malnutrition
Peptic Ulcer Diseases
Pancreatic Diseases
Ulcerative Colitis
Vitamin A Deficiency
Vitamin B Deficiency
Vitamin C Deficiency
Hypervitaminosis A, B and D
Albinism
Amyloidosis
Galactosemia
Gout
Marfan's Syndrome
Niemann-Pick Disease
Wilson's Disease
Craniofacial Syndromes
Facial Deformity Syndromes
Myasthenia Gravis
Muscular Dystrophy Disorders
Bronchiectasis
Bronchogenic Carcinoma
Emphysema
Lowe's Syndrome
Nephrotic Syndrome
Renal Transplantation
Wilms' Tumor
Breast Carcinoma
Periarteritis Nodosa
Scleroderma
Influenza
Malaria
Lymphomas
Thalassemia
Endocarditis
Malnutrition
Muscular Dystrophy Disorders
Pneumonia
Renal Transplantation
Breast Neoplasm
Lung Neoplasm
Alkaptonuria
26:
Quick Look Tabulated Ocular Therapeutics Information
ANTIBACTERIALS
COMBINATION ANTIBIOTICS
ANTI-INFLAMMATORY DRUGS
Topical Steroidal Agents
Nonsteroidal Anti-inflammatory Agents
TOPICAL STEROID-ANTIBIOTIC COMBINATIONS
ANTIVIRAL THERAPY
First Generation Drugs
ANTIFUNGAL THERAPY
Polyenes
Imidazole Derivatives
Fluorinated Pyrimidines
Silver Sulphadiazine
Terbinafine
ANTI-ALLERGY THERAPY
Mast Cell Inhibitors
Antihistamines
Decongestants
Decongestants and Antihistamines Combination
Topical NSAIDs and Topical Steroids—See Anti-inflammatory Tables
Topical Immunosuppressors
ANTIGLAUCOMA THERAPY
Miotics
Cholinergic Agents
Anticholinesterase Agents
Alpha Adrenergic Agonists
Sympathomimetics
Beta Blockers
CARBONIC ANHYDRASE INHIBITORS
Prostaglandins
Hyperosmotic Agents
Ocular Hypotensive Lipid (OHL)
Antimetabolites
LOCAL ANESTHETIC AGENTS
Injectable Agents
Esters
Amides
Topical Anesthetic Agents
LOCAL ANESTHETIC COMBINATIONS
MYDRIATICS AND CYCLOPLEGICS
Mydriatic Adrenergic Agents
Cholinergic Antagonist as Cycloplegic Mydriatics
Mydriatic Combinations
OPHTHALMIC VISCOSURGICAL DEVICES (OVD) AND SURGICAL ADJUNCTS
Viscoelastic Substances
Irrigating Solutions
Intraocular Irrigating Solutions
Extraocular Irrigating Solutions (EIS)
Surgical Enzymes
Chelating Agents and Mycolytics
Caustic Preparations
Cyanoacrylate Tissue Adhesive
Surgical Adjuncts
OPHTHALMIC DYES
LUBRICANTS and ARTIFICIAL TEAR SOLUTIONS
Methylcellulose and Ethylcellulose Base
Polyvinyl Alcohol-base Solutions
Miscellaneous Artificial Tear Solutions
TOPICAL IMMUNE THERAPY
TOPICAL HYPEROSMOTIC AGENTS
CONTACT LENS CARE PRODUCTS
Hard Lenses
Cleaning/Soaking/Wetting Solutions for Hard Lenses (Complete)
Wetting Solutions (Hard Lenses)
Wetting/Soaking Solutions (Hard Lenses)
Rewetting Solutions (Hard Lenses)
Cleaning Solutions (Hard Lenses)
Cleaning and Soaking Solution (Hard Lenses)
Rigid Gas Permeable (RGP) Lenses
Wetting/Soaking Solutions (RGP Lenses)
Disinfecting/Cleaning Solutions (RGP Lenses)
Surfactant Cleaning Solutions (RGP Lenses)
Enzymatic Cleaners (RGP Lenses)
Rewetting Solutions (RGP Lenses)
Soft Lenses (Hydrogel)
Disinfection Nonhydrogen Peroxide Soft Lenses
Disinfection Hydrogen Peroxide Soft Lenses
Saline Solutions (Preserved) Soft Lenses
Preservative Free Saline Solutions (Soft Lenses)
Rinsing/Storage Solutions (Soft Lenses)
Surfactant Cleaning Solutions (Soft Lenses)
Enzymatic Cleaners (Soft Lenses)
Disinfecting/Wetting/Soaking Solution (Soft Lenses)
REWETTING SOLUTIONS (SOFT LENSES)
NONSURGICAL ADJUNCTS
Lid Scrubs
Tear Test Strips
Hamameli's Water
BORIC ACID
Astringent Ophthalmic Solution
Vitamin and Antioxidants
Topical Anticataract Therapy
Medical Therapy for Diabetic Retinopathy
Disinfective and Antiseptic agents in ophthalmology
SECTION 2: APPLIED OCULAR THERAPEUTICS IN OPHTHALMIC SURGERY
27:
Comprehensive Review of Topical Ophthalmic Antibacterial Agents: Their Mechanisms of Action and Adverse Effects Including Long-Standing Drugs and the Most Recent Preparations
BACTERIAL CONJUNCTIVITIS
BACTERIAL KERATITIS
PROPERTIES OF TOPICAL OPHTHALMIC ANTIBACTERIAL AGENTS
Fluoroquinolones
Chemistry, Ophthalmic Preparation, and Pharmacologic Action
Clinical Experience and Ophthalmic Uses for the Individual Ophthalmic Preparations of the Fluoroquinolones
Gatifloxacin Ophthalmic Solution
Moxifloxacin Ophthalmic Solution
Adverse Effects
EXTEMPORANEOUSLY COMPOUNDED FORTIFIED ANTIBIOTICS
AMINOGLYCOSIDES
Chemistry, Ophthalmic Preparation, and Pharmacologic Action
Clinical Experience and Ophthalmic Uses
Adverse Effects
BACITRACIN
Chemistry, Ophthalmic Preparation, and Pharmacologic Action
Clinical Experience and Ophthalmic Uses
Adverse Effects
BETA-LACTAM ANTIBIOTICS
Chemistry, Ophthalmic Preparation, and Pharmacologic Action
Clinical Experience and Ophthalmic Uses
Adverse Effects
CHLORAMPHENICOL
Chemistry, Ophthalmic Preparation, and Pharmacologic Action
Clinical Experience and Ophthalmic Uses
Adverse Effects
MACROLIDES
ERYTHROMYCIN
Chemistry, Ophthalmic Preparation, and Pharmacologic Action
Clinical Experience and Ophthalmic Uses
Adverse Effects
AZITHROMYCIN
Chemistry, Ophthalmic Preparation, and Pharmacologic Action
Clinical Experience and Ophthalmic Uses
Adverse Effects
POLYMYXIN AND COMBINATION PRODUCTS
Chemistry, Ophthalmic Preparation, and Pharmacologic Action
Clinical Experience and Ophthalmic Uses
Adverse Effects
SULFACETAMIDE
Chemistry, Ophthalmic Preparation, and Pharmacologic Action
Clinical Experience and Ophthalmic Uses
Adverse Effects
TETRACYCLINES
Chemistry, Ophthalmic Preparation, and Pharmacologic Action
Clinical Experience and Ophthalmic Uses
Adverse Effects
VANCOMYCIN
Chemistry, Ophthalmic Preparation, and Pharmacologic Action
Clinical Experience and Ophthalmic Uses
Adverse Effects
SELECTING THE OPTIMAL OPHTHALMIC ANTIBIOTIC
Goals of Treatment
CLINICAL JUDGMENT IN CHOOSING AN OPHTHALMIC ANTIBIOTIC
BACTERIAL CONJUNCTIVITIS
Common Prescribing Practices
BACTERIAL KERATITIS
Common Prescribing Practices
NORFLOXACIN 0.3 percent SOLUTION
28:
Preoperative and Postoperative Antibiotic Prophylaxis in Cataract Surgery
ANTIBIOTIC PROPHYLAXIS
Topical Antibiotics
Gentamicin
Trimethoprim-Polymyxin B Sulphate
CHLORAMPHENICOL
TOPICAL FLUOROQUINOLONES
LOMEFLOXACIN
Ofloxacin
FOURTH GENERATION FLUOROQUINOLONES
Subconjunctival Antibiotics
INTRACAMERAL ANTIBIOTICS
29:
Management of Iatrogenic Inflammation of the Eye
TOPICAL APPLICATION
Systemic Therapy
Repository Injection
Intravitreal Injection
Controlled Release Vehicles
Pulse Therapy
Indications
Use in Ocular Surgery
Contraindications and Complications
Systemic Complications
Local Contraindications and Complications
Responsive Diseases
Boeck's Sarcoid Uveitis
Orbital Myositis
Ocular Pemphigoid
Herpes-Zoster
Neoplasms
Tolosa-Hunt Syndrome
Anterior Segment Ischemia
Pseudotumor Cerebri
Toxoplasmosis
Other Indications
USE OF NONSTEROIDAL ANTI-INFLAMMATORY DRUGS IN INFLAMMATION
Ocular Inflammation
Mechanism of Action
Cystoid Macular Edema
Postoperative Inflammation
Uveitis
Scleritis and Episcleritis
Allergic and Giant Papillary Conjunctivitis
Side Effects of NSAIDs
CONCLUSION
30:
Management of Postrefractive Keratitis
31:
Ocular Pharmacotherapeutics in Corneal Refractive Surgery
PREPROCEDURE THERAPEUTIC MEDICATIONS
Topical Anesthesia
POSTPROCEDURE THERAPEUTIC MEDICATIONS
Phases of Healing
32:
Antioxidants and Their Role in Ophthalmology
CLASSIFICATION OF ANTIOXIDANTS
Preventive Antioxidants (Majority are Endogenous, Produced in the Body)
Chain-breaking Antioxidants
Water-soluble
Fat-soluble
Carotenoids
Ascorbic Acid
Tocopherols and Tocotrienol Isomers
Zinc, Manganese and Copper
Selenium
Bioflavonoids
Flavonoids
Age-related Macular Degeneration
Diabetic Retinopathy
Cataract Prevention
CONCLUSION
SUMMARY
33:
Tetracyclins for Ocular Surface Diseases
34:
Clinical Applications of Antimycotic Agents in the Eye
INTRODUCTION
KERATOMYCOSIS
Treatment of Fungal Keratitis
Polyenes
Newer Azoles
Other Derivatives
ORBITAL CELLULITIS
Treatment Modalities for Orbital Cellulitis
DACRYOCYSTITIS
Treatment of Dacryocystitis
ENDOPHTHALMITIS
Intravitreal Amphotericin B
Systemic
Influence of Fungal Species on Therapeutic Outcome of Infection
35:
Recommended Antibiotic Dosages for Various Clinical Conditions of the Eye
36:
Endophthalmitis Prevention Strategies
NEW CONCEPTS IN ENDOPHTHALMITIS TREATMENT
EXISTING LITERATURE
PRACTICAL CLINICAL PRACTICE
MICROBIAL ANTIBIOTIC RESISTANCE
37:
Management of Myopic Choroidal Neovascularization
PHOTODYNAMIC THERAPY
INTRAVITREAL ANTI-VEGF DRUG INJECTION
SUMMARY
38:
Treatment of Central Serous Choroidopathy
INTRODUCTION
Concept and Classification
Epidemiology
Etiology
Symptoms
Clinical Forms and Natural History
Acute CSC
Chronic CSC
Diagnosis
Biomicroscopy
Complementary Test
Fluorescein Angiography (FA)
Fundus Autofluorescence Imaging
Indocyanine Green Angiography
Optical Coherence Tomography
Microperimetry
Electrophysiology
DIFFERENTIAL DIAGNOSIS
TREATMENT
Observation
Pharmacological Treatment
Antiangiogenic Drugs
Glucocorticoids Inhibiting Drugs
Other Drugs
Argon Laser Photocoagulation
Photodynamic Therapy
Half-fluence PDT (6 mg/m2, 25 J/cm2)
Half-dose PDT (3 mg/m2)
PATHOGENESIS
CASE REPORT (FIGURES 38.1 TO 38.9)
39:
Treatment of Retinal Angiomatous Proliferation
NATURAL HISTORY
Laser Photocoagulation
Transpupillary Thermotherapy
Photodynamic Therapy with Visudyne
Intravitreal Antiangiogenic Drugs
Combined Therapies
CONCLUSION
40:
Conjunctival Allergen Challenge for Evaluating Anti-inflammatory Therapy
INTRODUCTION
METHODS
Conjunctival Allergen Challenge
Objective Measurements
Erythema
Edema
Sensation
Subjective Measurements
Instillation of Vasoconstrictor/ Antihistamine Eyedrops
Repeat Measurements
Statistical Analysis
RESULTS
Conjunctival Allergen Challenge
Objective Measurements
Erythema
Edema
Sensation
Subjective Measurements
Erythema
Edema
Itching
Statistical Analysis
SUMMARY
Repeat Measurements After Instillation of Vasoconstrictor/Antihistamine Eyedrops
DISCUSSION
41:
Steroid Therapy for Allergic Ocular Disease
NEW CONCEPTS IN TOPICAL STEROID THERAPY
The True Risk to Benefit Profile for Allergic and Ocular Surface Disease
Insufficient Steroid Treatment Adversely Impacts Outcomes
THE NATURE OF ALLERGIC DISEASE
Molecular Biology Allows Better Understanding of Ocular Allergic Diseases
Reversible Inflammation
COMBINED SURFACE DISEASES PRESENT DIAGNOSTIC CHALLENGES
Rapid Diagnosis of Dry Eye, Blepharitis and Allergy
Clarify Concomitant Ocular Surface Disease
Tear Film and Schirmer Testing
Sjögren's Syndrome can Accompany Allergic Disease
INNOVATIVE STRATEGIES FOR OCULAR SURFACE DISEASES
Dry Eye and Ocular Allergy have Overlapping Therapeutic Profiles
Punctal Occlusion, Past and Present
Therapy for Every Allergy Level
Treating Moderate to Severe Disease
Tapering and Titration
Perspective on Risks
Environmental Control
BLEPHARITIS EXACERBATES DRY EYES AND ALLERGY
Blepharitis Diagnosis
Topical Ointments: Bacitracin and Erythromycin
Systemic Therapy
Loteprednol, Metronidazole, Topical Doxycycline, and Cyclosporine
Nutrition for Blepharitis and Ocular Allergy
STEROIDS FOR CONTACT LENS WEARERS AND REFRACTIVE SURGERY PATIENTS
Awareness of Ocular Surface Disease
Challenging Refractive Patients and Informed Consent
42:
Optimizing Visual Outcomes with NSAIDs Therapy in Cataract and Refractive Surgeries
RATIONALE FOR TREATING OCULAR INFLAMMATION
PHARMACOLOGIC THERAPY FOR OCULAR INFLAMMATION
NSAIDs for Control of Pain Following Photorefractive Keratectomy
NSAIDs vs Steroids
NSAIDs for the Inhibition of Miosis
NSAIDs and Topical Steroids
Prevention of CME
43:
Immunosuppressive Drugs in Ophthalmology
INTRODUCTION
SELECTION OF PATIENTS
ALKYLATING AGENTS
Clinical Indications
Dosage
Cyclophosphamide
Chlorambucil Dosage
Adverse Reactions
ANTIMETABOLITES
Clinical Indications
Dosage
Azathioprine
Methotrexate Dosage
ANTIBIOTIC CYCLOSPORIN A
Indications
Clinical Indications
Relative Indications
Dosage
Adverse Effects
OCULAR DRUG TOXICITY OF IMMUNOSUPPRESSIVE AGENTS USED IN OPHTHALMIC CONDITIONS
RECENT ADVANCES IN IMMUNOSUPPRESSIVE THERAPY
Liposomes
44:
Management of Cystoid Macular Edema
INTRODUCTION
DEFINITION
ETIOLOGY
Postsurgical, Primary or Secondary (Capsulotomy)
Microvascular Damage
Inflammatory Diseases
Postmedication (Antiglaucoma Drugs and Preservatives)
Peripheral Retinal Lesions
Tumoral Diseases
Eye Hypotony
Optic Nerve Diseases
Retinal Traction
Final Common Pathway of Underlying Diseases
HISTOPATHOLOGY
CLINICAL FINDINGS
PARACLINICAL APPROACH
TREATMENT
Nonsurgical Approach
Nonsteroidal Anti-inflammatory Drugs
Corticosteroids
Carbonic Anhydrase Inhibitors
Intravitreal Medication
Surgical Approach and Drugs Related
CONCLUSION
45:
Blepharitis
CLASSIFICATION
GENETICS
INFECTION
ALLERGY
CORNEAL MANIFESTATIONS
CHEMISTRY
TREATMENT
SUMMARY
46:
Trypan Blue in the Management of Mature Cataract
INTRODUCTION
RHEXIS IN MATURE CATARACTS
TRYPAN BLUE
TECHNIQUE
ADVERSE EFFECTS
STERILIZATION
INDOCYANINE GREEN DYE
SUMMARY
47:
Trypan Blue Assisted Epiretinal Membrane Removal
INTRODUCTION
PATIENTS AND TECHNIQUE
RESULTS
CONCLUSION
48:
Perfluorocarbon Liquids in Vitreoretinal Surgery
INTRODUCTION
TYPES
PHYSICAL PROPERTIES
Density
Relative Density or Specific Gravity
Refractive Index
Laws of Refraction
Surface Tension
Viscosity
Vapor Pressure
Boiling Point
INDICATIONS
Giant Tears
Proliferative Vitreoretinopathy
Proliferative Diabetic Retinopathy
Dislocated Crystalline Lenses or Intraocular Lenses
MISCELLANEOUS
OTHER MEDICAL APPLICATIONS
COMPLICATIONS
49:
Use of Tissue Adhesives in Ophthalmology
CYANOACRYLATE TISSUE ADHESIVES
Uses in Ophthalmology
Mechanism of Bonding
HUMAN FIBRIN GLUES
Mechanism of Bonding
Glue Preparation and Application
Uses in Ophthalmology
RECENT ADVANCES IN TISSUE ADHESIVES IN OPHTHALMOLOGY
50:
Photodynamic Therapy (Verteporfin) in Age-related Macular Degeneration
INTRODUCTION
TECHNIQUE
Verteporfin
Post-treatment Regime
PREPARATION OF THE PATIENT FOR PDT
CALCULATION OF THE TREATMENT SPOT SIZE REQUIRED COVERING THE CNV
Procedure
Results
Subgroup Analysis
Results of VIP Study14
CONCLUSION
51:
Indocyanine Green Angiography
INTRODUCTION
ADVANTAGES OF ICG
HISTORY
Realtime ICG Angiography
Wide Angle Image
Digital Subtraction
PHARMACOLOGY
TOXICITY
TECHNIQUE
VARIOUS PHASES OF ICG ANGIOGRAPHY
ICG IN AGE RELATED MACULAR DEGENERATION
ICG Dye Enhanced Diode Laser Photocoagulation
Feeder Vessel Treatment
Idiopathic Polypoidal Choroidal Vasculopathy
Central Serous Chorioretinopathy
Intraocular Tumors
Choroiditis
Bird Shot Retinochoroidopathy
Serpiginous Choroiditis23
Multifocal Choroiditis
Acute Multifocal Placoid Pigment Epitheliopathy24
Multiple Evanescent White Dot Syndrome25
Vogt Koyanagi Harada Disease
SUMMARY
52:
Management of Dry Eye—Current Trends and Recent Advances
MEDICAL MANAGEMENT
Tear Substitutes
Carboxymethylcellulose
Hydroxypropyl Methylcellulose
Polyvinyl Alcohol
Polyethylene Glycol
Propylene Glycol
HP-Guar
Hyaluronic Acid
Preservative Concerns
Autologous Serum Tears
Secretagogues
Anti-inflammatory Agents
Nutritional Supplements
Mucolytics
Topical Vitamin A (Retinol)
Eyelid Integrity
Systemic Disease
B-cell-targeted therapies
T-cell-targeted therapies
Cytokine-targeted therapies
Complement-targeted therapies
ONGOING CLINICAL TRIALS
Thymosin Beta 4 (Tβ4)44
Hydroxypropyl Guar Galactomannan45
Lotemax50
Dexamethasone Phosphate (Ocular Iontophoresis)54
Guidelines for Treatment Selection
53:
Management of Endophthalmitis: Antibiotic Schedule and Dosages
ACUTE POSTOPERATIVE ENDOPHTHALMITIS
Prophylaxis
Intraocular Antibiotics
Vancomycin
Ceftazidime
Aminoglycosides
Systemic Antibiotics
Subconjunctival and Topical Antibiotic Therapy
Steroid Treatment
Vitrectomy
Chronic Postoperative Endophthalmitis
Bleb-associated Endophthalmitis
Post-traumatic Endophthalmitis
Endogenous Endophthalmitis
Intravitreous Triamcinolone-associated Endophthalmitis
CONCLUSION
54:
Surgical Techniques of Glued IOL
INTRODUCTION
SCLERAL FIXATED IOL
FIBRIN GLUE
SURGICAL TECHNIQUE
DISCUSSION
SUMMARY
55:
Intraocular Gases
PHYSICAL PROPERTIES OF GASES
INTRAOCULAR GAS GEOMETRY
Surface Tension, Buoyancy and Arc of Contact
INTRAOCULAR GAS KINETICS
Diffusion, Expansion and Absorption
Nonexpansile Concentration
Longevity and Half Life
EFFECT OF ANESTHETIC GASES AND ATMOSPHERIC DEPRESSURIZATION
CLINICAL CONSIDERATIONS
CHOICE OF GAS
Air
Expansile Gases
Advantages
Disadvantages
Clinical Settings
What Size Gas Bubble is Needed?
What Length of Time the Bubble should Stay in the Eye?
For Pneumatic Retinopexy
NONEXPANSILE CONCENTRATION
TECHNIQUES OF FLUID-AIR EXCHANGE AND INTRAOCULAR GAS INJECTION
For Pneumatic Retinopexy
Preparation of the Gas
Injection of Gas
CLINICAL USES
POSTOPERATIVE MANAGEMENT
Postoperative Visits and Postoperative Care
Postoperative Intraocular Pressure Management
TOXICITY AND COMPLICATIONS
56:
Pharmacology of Anti-VEGF Therapy
VASCULAR ENDOTHELIAL GROWTH FACTOR AND ANGIOGENESIS
Pharmacology of Anti-VEGF Agents
Pegaptanib
Bevacizumab
Ranibizumab
Aflibercept
ADMINISTRATION OF ANTI-VEGF THERAPY
SIDE EFFECTS OF ANTI-VEGF THERAPY
CONCLUSION
SECTION 3: RECENT ADVANCES IN OCULAR THERAPEUTICS
57:
Toxic Anterior Segment Syndrome
INTRODUCTION
Diagnosis and Clinical Features
Pathology
Epidemiology and Etiology
Instrument Contamination
Treatment
Outcomes
Investigation and Reporting
Case and Outbreak Definition
Data Collection
Microbial Investigations
CONCLUSION
58:
Anesthesia Trends in Ophthalmology
HISTORY
PERIOPERATIVE WORKUP
TRENDS IN TOPICAL ANESTHESIA
TRENDS IN REGIONAL ANESTHESIA
AUTHOR'S TECHNIQUE
SUMMARY
NOTE
59:
Azithromycin in Ophthalmology: A New Therapy
TOPICAL AZITHROMYCIN EYEDROP (AZASITE)
Chemical Characteristics
CHEMICAL STRUCTURES OF AZITHROMYCIN AND ERYTHROMYCIN
Pharmacokinetics
DuraSite Drug Delivery System
MODELED BIOAVAILABILITY OF AZITHROMYCIN FROM AZASITE
Clinical Trials
Expanded Killing Profile
CONCLUSION
60:
Use of Beta-adrenergic Blockers in Ocular Vascular Diseases
INTRODUCTION
Infantile Capillary Hemangioma
Retinopathy of Prematurity
Diabetic Retinopathy
Choroidal Neovascularization in Age-related Macular Degeneration
61:
Clinical Applications of Anti-inflammatory and Anti-protease Effects of Tetracyclines in Ocular Surface Disease
SUMMARY
62:
Optimized NSAIDs and Antibacterial Regimen is Key to Ocular Surgical Prophylaxis
POSTOPERATIVE SCHEDULE FOR CATARACT PATIENTS
Drug Dosages
MEASURING POTENCY
PENETRATION TRACKING
SAFETY EVALUATION
63:
Ophthalmic Medications in Pediatric Age Group
INTRODUCTION
PRECAUTIONS
MYDRIATIC AGENTS
Adrenergic Agonist
Phenylephrine Hydrochloride
Cycloplegic Agents/Parasympatholytics
Indications in Children
Atropine Sulfate
Dosage
Homatropine
Cyclopentolate
Tropicamide
Dosage
GLAUCOMA MEDICATIONS
Beta-blockers
Mechanism
Potential Side Effects
Contraindications and Toxicity
Carbonic Anhydrase Inhibitors
Mechanism of Action
Dosage and Preparations
Potential Side Effects
Alpha-adrenergic Agonists
Mechanism of Action
Dosage and Preparation
Potential Side Effects
Adrenergic Agonist (Sympathomimetic)
Mechanism of Action
Dosage and Preparation
Potential Side Effects
Parasympathomimetics
Mechanism of Action
Indications
Dosage and Preparation
Potential Side Effects
Contraindications
Prostaglandin Analogs
Mechanism of Action
Dosage and Preparations
Potential Side Effects
ANTI-INFLAMMATORY DRUGS
Steroids
Mechanism of Action
Indications
Dosage and Preparations
Potential Side Effects
Relative Potential Side Effects of Various Corticosteroids
Precautions
Nonsteroidal Anti-inflammatory Drugs (NSAIDs)
Mechanism of Action
Indications
Dosage and Preparations
Potential Side Effects
ANTI-ALLERGY MEDICATIONS
Mast Cell Inhibitors
Mechanism of Action
Indications
Dosage and Preparations
Potential Side Effects
Decongestants (Antihistaminics and Sympathomimetics)
Mechanism of Action
Preparation and Dosage
Potential Side Effects
Dual Agents
Mechanism of Action
Indication
Dosage and Preparation
Potential Side Effects
ANTIBIOTICs
Beta-lactams
Mechanism of Action
Preparations
Dosage and Routes of Administration
Side Effects and Safety
SULfONAMIDES
Mechanism of Action
Indications
Effectivity
Resistance
Preparation and Dosage
Side Effects and Safety
AMINOGLYCOSIDES
Mechanism of Action
Effectivity
Resistance
Preparation and Dosage
Side Effects and Safety
MACROLIDES
Mechanism of Action
Effectivity
Preparation and Dosage
Side Effects and Safety
TETRACYCLINES
Mechanism of Action
Effectivity
Resistance
Preparation
Side Effects and Safety
CHLORaMPHENICOL
Mechanism of Action
Effectivity
Resistance
Preparation and Dosage
Side Effects and Safety
FLUoROQUINOLONES
Mechanism of Action
Effectivity
Preparation
Side Effects and Safety
ANTIVIRALS (Table 63.5)
Mechanism of Action
Preparations and Dosage
Side Effects and Safety
ANTIFUNGALS
Polyenes
Mechanism of Action
Preparation and Dosage
Side Effects and Safety
Imidazole Derivatives
Mechanism of Action
Preparations and Dosage
Side Effects and Safety
Fluorinated Pyrimidines—Flucytosine
Mechanism of Action
Preparation and Dosage
Side Effects and Safety
CONCLUSION
64:
Management of Uveitis in Children
JUVENILE IDIOPATHIC ARTHRITIS ASSOCIATED UVEITIS
Diagnosis
Management
FUCHS HETEROCHROMIC UVEITIS
Management
INTERMEDIATE UVEITIS
Diagnosis
Management
BEHÇET'S DISEASE
Management
TOXOPLASMOSIS
Clinical Features
Management
TOXOCARIASIS
SUMMARY
65:
Management of Anticoagulation Therapy in Elective Ophthalmic Procedures
IDENTIFYING THE PATIENTS AT RISK
RISK OF BLEEDING COMPLICATIONS
Cataract Surgery
Vitreo-retinal Surgery
Glaucoma Surgery
Lacrimal Surgery
MODIFYING ANTITHROMBOTIC THERAPY DURING OPHTHALMIC SURGERY
INTRAOPERATIVE CONSIDERATIONS TO REDUCE BLEEDING IN PATIENTS USING ANTICOAGULATION THERAPY
66:
Ocular Pharmacology of Intravitreal Dexamethasone Sustained Release Implant
INTRODUCTION
MECHANISM OF ACTION
CHEMICAL FORMULA
TECHNIQUE
PHARMACOKINETICS
Pharmacokinetics in Vitrectomized and Non-vitrectomized Eye
INDICATIONS
CONTRAINDICATIONS
ADVERSE EFFECTS
67:
Nanotechnology in Ophthalmology
INTRODUCTION
MEDICINE AND NANOTECHNOLOGY
Medical Nanodevice/Nanomachines
Properties
Question of Immune Response
Nanotechnology and Genetics
Nanotechnology in Drug Development and Drug Delivery Systems
NANOTECHNOLOGY IN OPHTHALMOLOGY
Nanoceria Particles for Ocular Diseases Associated with Free Radical Damage
Nanosensors for Continuous IOP Monitoring
Nanotechnology and Theragnostics
Nanotechnology and Ocular Gene Therapy
Nanoparticles for Ophthalmic Drug Delivery
Ocular Drug Delivery Using Nanobubble
Nanofibers for Glaucoma
OCULAR DISTRIBUTION OF NANOPARTICLES
FUTURE OF NANOTECHNOLOGY
68:
Photochemical Therapy for Corneal Infections
INTRODUCTION
ANTIMICROBIAL EFFECTS OF PCTCI
Antibacterial Effect Trials
Antiamoebic Effect
Antiviral Effect
Antifungal Effect
MICROBIAL KERATITIS FOLLOWING CXL
Bacterial Keratitis
Amoebic Keratitis
Viral Keratitis
Fungal Keratitis
MICROBIAL KERATITIS FOLLOWING OTHER PDT APPROACHES
ANTIMICROBIAL EFFECT OF OTHER PDT APPROACHES
Antibacterial Effect
Antiamoebic Effect
Antiviral Effect
Antifungal Effect
CONCLUSION
69:
Recent and Future Drugs in Ophthalmology
INTRODUCTION
RECENT AND EMERGING DRUGS
Future Drugs for Glaucoma Treatment
Emerging Drugs for Uveitis
Vitreous and Ocriplasmin
NEW DRUG DELIVERY IN OPHTHALMOLOGY
BIOLOGICAL TRANSPORTERS AND PRODRUGS
COLLOIDAL CARRIERS AND NANOPARTICLES
Micelles
Emulsions
Ion-activated Gel
Liposomes
Nanoparticles
Dendrimers
Polyplexes
Vision Regeneration
CONCLUSION
INDEX
TOC
Index
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