Understanding common vision problems
There are three main parts to the human eye: the cornea, the lens, and the retina. The retina is like the film in a camera. In normal vision, the cornea refracts (bends) light so it can be directed correctly through the lens and onto the retina. Vision problems requiring glasses or contact lenses are usually the result of disorders or irregularities of the shape of the cornea.
LASIK solves these problems by using a laser to reshape the curvature of the cornea so that normal, clear sight is obtained.
Nearsightedness (myopia)
Nearsighted people can see close objects clearly but objects in the distance are blurry. Nearsightedness occurs when the cornea is too steep or the eye is too long. This causes light to focus in front of the retina, resulting in blurry distance vision. LASIK corrects this condition by flattening the curvature of the cornea.
Farsightedness (hyperopia)
Farsighted people see distant objects better, but intermediate and close-up objects are blurred. Farsightedness occurs when the cornea is too flat, or the eye is too short, causing light rays to focus behind the retina. LASIK corrects this condition by steepening the cornea so that it focuses images onto the retina.
Astigmatism
Astigmatism is the inability to focus clearly at any distance due to an irregular or misshapen cornea. With astigmatism, the cornea is shaped more like a football than a basketball, and light rays focus at differing points on the retina. This causes both distant and near images to be distorted. LASIK corrects this oval shape so images can be clearly focused on the retina.
Presbyopia (reading glasses)
Patients over the age of 40 often find they can no longer see up-close without the need for reading glasses. You may have been told there is not a good answer for reading glasses or you may not have liked the "regular monovision" that you previously tried. Dr. Manger is an expert with "blended monovision," which allows patients to see both distance and near, eliminating the need for reading glasses for most — if not all — up-close activities.
Schedule your free VIP exam today to find out if All-Laser Custom LASIK can correct your vision problems!
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