What is the common reason for prescribing beta blockers to manage glaucoma?

Beta blockers are commonly prescribed to manage glaucoma primarily because they effectively lower intraocular pressure (IOP). Elevated IOP is a critical risk factor for optic nerve damage in glaucoma patients, and reducing this pressure is essential in preventing vision loss. Beta blockers work by decreasing the production of aqueous humor in the eye, which leads to a reduction in IOP. This mechanism has been well-studied and is a foundational aspect of glaucoma management.

The effectiveness of beta blockers in lowering IOP makes them a standard choice in treatment protocols. While other medications may also be used, beta blockers have a long history of use and are often one of the first-line therapies provided to patients with glaucoma, particularly when lifestyle adjustments or laser treatments have not been sufficient to manage the condition.