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 eyeball is slightly longer than usual from front to back or the shape of the cornea is too steep. This causes the light entering the eye to come to a focus in front of the retina which results in a blurred distance vision.
Hyperopia, or farsightedness...
Glaucoma is a disease that affects the optic nerve. The disease causes optic nerve damage, which leads to partial or total vision loss. These two types of glaucoma both stem from a problem in the angle between the cornea and iris of the eye. They are called Narrow Angle and Closed Angle Glaucoma.
Narrow Angle glaucoma can develop either quickly or slowly and usually occurs in people with farsightedness. It occurs when the angle narrows causing the aqueous fluid to build up. This narrowing...
