What is the primary function of carbonic anhydrase in the eye?

The primary function of carbonic anhydrase in the eye is to produce aqueous humor. This enzyme plays a critical role in the secretion of aqueous humor by catalyzing the reversible reaction between carbon dioxide and water to form bicarbonate and protons. The bicarbonate ions contribute to the osmosis of water into the anterior chamber of the eye, which is essential for maintaining intraocular pressure and supplying nutrients to the avascular structures of the eye, such as the lens and cornea.

Aqueous humor production is vital for maintaining the eye's shape and supporting proper intraocular pressure, which is crucial for overall eye health and proper vision. By facilitating aqueous humor formation, carbonic anhydrase indirectly supports numerous functions of the eye, including nutrient transport and waste removal.