The angle-closure glaucomas are a diverse group of disorders characterized by iridotrabecular apposition and or adhesion, which can be caused by changes in the relative or absolute sizes or positions of anterior segment structures. Early detection of the angle-closure component is especially important because of the specific therapy (laser iridotomy, iridoplasty, etc.), which in most cases can halt, if not reverse, the chain of events leading to ultimate synechial angle-closure. Filtration surgery in this subgroup of patients requires certain special considerations and is associated with a higher rate of complications, such as uveal effusion and aqueous misdirection glaucoma. Angle-closure glaucoma can sometimes be misdiagnosed as normal pressure glaucoma or as ocular hypertension. The management of angle-closure glaucoma depends on the cause, type and duration of angle closure, the intraocular pressure control and the associated disc damage.