How is angle-closure glaucoma treated?

“Closed-angle glaucoma” (also known as “angle-closure glaucoma”) is one of the common types of glaucoma. It occurs when the anterior chamber angle closes, obstructing aqueous humor outflow and thereby elevating intraocular pressure.

How is closed-angle glaucoma treated?

Clinically, treatment for closed-angle glaucoma primarily focuses on lowering intraocular pressure (IOP) and mitigating optic nerve damage. Additionally, comprehensive management includes patient education, medical nutrition therapy, exercise therapy, regular disease monitoring, and pharmacotherapy.

Pharmacologic treatment options for closed-angle glaucoma include the following: Prostaglandin analogs—such as latanoprost and travoprost eye drops—lower IOP by enhancing uveoscleral outflow of aqueous humor. These agents are indicated for chronic angle-closure glaucoma and are currently considered first-line therapy for glaucoma. Adverse effects are generally mild and infrequent; with long-term use, local side effects may include eyelid pigmentation, eyelash thickening and elongation, and iris darkening.

Carbonic anhydrase inhibitors—such as brinzolamide eye drops—reduce IOP by suppressing aqueous humor production. They are indicated for ocular hypertension. Common adverse effects include local ocular irritation; these agents are contraindicated in patients with sulfonamide allergy.

In acute angle-closure glaucoma, intravenous hyperosmotic agents—including mannitol and urea—may be administered to rapidly lower IOP. Oral carbonic anhydrase inhibitors—such as acetazolamide—may also be used. Alternative hyperosmotic agents—including glycerol saline and isosorbide—can similarly reduce IOP.

For patients with acute angle-closure glaucoma, lifestyle modifications are essential: avoid excessive eye strain, minimize exposure to intense light, rest the eyes frequently by closing them, and ensure adequate rest. Diet should be light and nutritionally balanced, emphasizing foods rich in multiple vitamins. Regular, moderate physical activity—such as yoga, tai chi, or hiking—can improve systemic circulation and support recovery. Definitive treatment options include laser peripheral iridotomy or surgical peripheral iridectomy, both of which can effectively resolve the condition.

We hope this information is helpful to you.