What do beta-blockers do for glaucoma patients?

Beta-blockers are used to decrease aqueous humor production in glaucoma patients. Option A, Increase aqueous humor outflow, is incorrect as beta-blockers do not affect the outflow of aqueous humor. Option C, Increase blood flow to the retina, is incorrect as beta-blockers do not affect blood flow to the retina, they only target aqueous humor production. Option D, Decrease intraocular blood pressure, is also incorrect as beta-blockers specifically target the production of aqueous humor, not overall intraocular pressure. It is important for glaucoma patients to have lower levels of aqueous humor in order to reduce the risk of pressure on the optic nerve, which can lead to vision loss. Therefore, decreasing aqueous humor production is the most effective approach for treating glaucoma.