Which condition is diagnosed when the drainage of aqueous humor does not match its production, damaging the optic nerve?

Which condition is diagnosed when the drainage of aqueous humor does not match its production, damaging the optic nerve?

• A. Cataract
• B. Dry Eye Syndrome
• C. Macular Degeneration
• D. Glaucoma

Answer: (D)

Glaucoma is diagnosed when the drainage of aqueous humor does not keep up with its production, causing elevated intraocular pressure that damages the optic nerve. Aqueous humor is made by the ciliary body and normally drains through the trabecular meshwork and other outflow pathways; when drainage is insufficient, pressure builds, stressing and gradually injuring optic nerve fibers and leading to vision loss. The other conditions don’t center on this imbalance: cataracts cloud the lens, dry eye syndrome is about tear film instability, and macular degeneration affects the retina’s central area rather than the optic nerve from pressure-related damage. Glaucoma specifically describes the process of increased pressure due to drainage–production mismatch and consequent optic nerve damage, with treatment aimed at lowering intraocular pressure.

Glaucoma is diagnosed when the drainage of aqueous humor does not keep up with its production, causing elevated intraocular pressure that damages the optic nerve. Aqueous humor is made by the ciliary body and normally drains through the trabecular meshwork and other outflow pathways; when drainage is insufficient, pressure builds, stressing and gradually injuring optic nerve fibers and leading to vision loss. The other conditions don’t center on this imbalance: cataracts cloud the lens, dry eye syndrome is about tear film instability, and macular degeneration affects the retina’s central area rather than the optic nerve from pressure-related damage. Glaucoma specifically describes the process of increased pressure due to drainage–production mismatch and consequent optic nerve damage, with treatment aimed at lowering intraocular pressure.