Which statement accurately describes the action of alpha 2 agonists in glaucoma treatment?

The action of alpha 2 agonists in the treatment of glaucoma is primarily characterized by their ability to inhibit aqueous humor production. This reduction in the production of aqueous humor helps lower intraocular pressure, which is crucial for managing glaucoma. Alpha 2 agonists, such as brimonidine, work by binding to alpha 2 adrenergic receptors in the ciliary body, leading to decreased secretion of aqueous humor.

In addition to their inhibitory effects on production, they may have some influence on increasing aqueous humor outflow, but their primary mechanism and the most significant effect in the context of glaucoma treatment is the reduction of fluid production. Understanding this mechanism is essential for proper treatment strategies in managing patients with glaucoma.