- Health A to Z
Healthline Premium Tools
Advertisement
Marketplace
 |
Astigmatism is an eye disorder in which the cornea(the clear tissue covering the front of the eye) is abnormally curved, causing out-of-focus vision.The cause of astigmatism is unknown. It is usually present from birth, and often occurs together w...
|
 |
Astigmatism is the result of an inability of the cornea to properly focus an image onto the retina. The result is a blurred image.The cornea is the outermost part of the eye.
|
 |
Sharp vision depends on many factors. The parts of the eye work together to refract (bend and focus) light rays. For normal vision, light must focus onto the retina. If the cornea or the eyeball as a whole is not the right shape, light doesn't focus correctly and vision is blurry. Common focusing problems include myopia, hyperopia, and astigmatism.
|
 |
Astigmatism results from an inability of the cornea to properly focus an image as a single point onto the retina, instead focusing the image on two different locations. The result is a blurred image.The cornea is a transparent layer that bends lig...
|
 |
Astigmatism is a problem of visual distortion caused by a misshapen cornea. The cornea acts as a focusing lens for the eye.
|
Home | About | Health Experts | Careers | Site Map | Feedback | Help | Health Tools | Tell a Friend
Advertise | Terms of Use | Privacy Policy
Advertise | Terms of Use | Privacy Policy
Copyright © 2005 - 2009 Healthline Networks, Inc. All rights reserved.