Final answer:
The beta-adrenergic receptor increases aqueous humor outflow of the eye and can be used clinically to manage glaucoma.
Step-by-step explanation:
The receptor that increases aqueous humor outflow of the eye is the beta-adrenergic receptor. Activation of this receptor by specific medications, such as beta blockers, can enhance the drainage of aqueous humor and lower intraocular pressure.
Lowering intraocular pressure is clinically important because elevated pressure can lead to glaucoma, a blinding condition characterized by damage to the optic nerve. By increasing aqueous humor outflow, medications that target the beta-adrenergic receptors help manage glaucoma and prevent vision loss.