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Laser_Eye

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Laser EYE SURGERY LASIK and Excimer Lasers Michael Hutchins The PROBLEM ã Myopia - near sightedness ã Caused by either an elongated eye or steep cornera. ã The focal point is in front of the retina instead of on it. ã Typically corrected with concave (negative optical power) lenses. THE PROBLEM ã Hyperopia - far sightedness ã Caused by a flat cornea or a short eye. ã Focal point is behind the retina. ã Corrected with concave lenses (positive optical power). THE PROBLE
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  Laser EYE SURGERY   LASIK and Excimer Lasers   Michael Hutchins    The PROBLEM   pia - near sightedness   sed by either an elongated or steep cornera.   focal point is in front of the a instead of on it.   cally corrected with concave ativeoticalowerlenses.  THE PROBLEM   eropia - far sightedness   ed by a flat cornea or rt eye.   l point is behind the a.   ected with concave s (positive optical  THE PROBLEM   matism arises from different focal points in different es of the eye.   sed by non-uniform curvature of the cornea or scarrilens.   ular astigmatism cannot be fixed by glasses, just cont
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