There are two basic types of astigmatism; myopia and hyperopia. These two types affect up to one third of the population and can be treated in a variety of ways from corrective lenses to surgery.

Myopia, or nearsightedness occurs when the...

Glaucoma is a disease that affects the optic nerve. The disease causes the nerve cells at the front of the optic nerve to die, which leads to partial or total vision loss. The first two types of glaucoma occur with in an eye that has no...