Your cornea is the clear front part of your eye. It is like a window that controls and focuses the light coming into the eye. If your cornea has an irregular shape, the light does not focus properly. Everything looks blurry. This is a refractive error.
Four common refractive errors are
* Myopia, or nearsightedness - clear vision close up but blurry in the distance
* Hyperopia, or farsightedness - clear vision in the distance but blurry close up
* Presbyopia - inability to focus close up as a result of aging
* Astigmatism - focus problems caused by the cornea
Glasses or contact lenses can usually correct refractive errors. Laser eye surgery may also be a possibility.
Four common refractive errors are
* Myopia, or nearsightedness - clear vision close up but blurry in the distance
* Hyperopia, or farsightedness - clear vision in the distance but blurry close up
* Presbyopia - inability to focus close up as a result of aging
* Astigmatism - focus problems caused by the cornea
Glasses or contact lenses can usually correct refractive errors. Laser eye surgery may also be a possibility.
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