Angle-closure glaucoma is a聽rare form of glaucoma characterized by a聽narrow or an occlusion of the anterior chamber angle and subsequently an obstruction of the outflow of aqueous humor resulting in an increase in intraocular pressure. Symptoms can include severe eye pain and/or headache, blurred vision, a聽medium-sized and rigid pupil, conjunctival hyperemia, and nausea. Treatment options include pressure-lowering topical and systemic medications as well as surgical interventions, especially cataract surgery and laser iridotomy. Besides parasympathomimetics (pilocarpine), all topical antiglaucoma medications can principally be used (beta-receptor antagonists, carbonic anhydrase inhibitors, alpha鈥�2 selective adrenergic antagonists, prostaglandins and prostaglandin analogues). Carbonic anhydrase inhibitors and osmotic agents (e.g., mannitol) can be systemically used.
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