The primary mechanism of action of beta-adrenergic blockers in the treatment of open-angle glaucoma is to
1. increase the outflow of aqueous humor.
2. constrict the pupil.
3. dilate the pupil to increase outflow.
4. reduce production of aqueous humor.
4
Rationale 1: Prostaglandins increase the outflow of aqueous humor.
Rationale 2: Cholinergic agonists constrict the pupil to allow for more room for outflow.
Rationale 3: Carbonic anhydrase inhibitors dilate the pupil to increase outflow.
Rationale 4: Beta-adrenergic blockers decrease the production of aqueous humor.
Global Rationale: Beta-adrenergic blockers decrease the production of aqueous humor. Prostaglandins increase the outflow of aqueous humor. Cholinergic agonists constrict the pupil to allow for more room for outflow. Carbonic anhydrase inhibitors dilate the pupil to increase outflow.
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