Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> What causes glaucoma?

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Glaucoma is an eye condition that damages the optic nerve due to increased eye pressure. Elevated eye pressure is due to a buildup of a fluid (aqueous humor) that flows throughout the inside of your eye.
This internal fluid normally drains out but when fluid is overproduced or the drainage system doesn't work properly, the fluid can't flow out at its normal rate, and eye pressure increases. This in turn damages the optic nerve.