Astigmatism, which is not a disease, usually results when the cornea, the eye’s front surface, develops an irregular curvature, and it is often linked with the problems of farsightedness and nearsightedness. When this condition exists, the way in which light rays within the eye are focused is disturbed, and steps should be taken to correct it. If the abnormality is present and is not corrected, people’s vision may resemble what we experience when we look into a wavy, distorted mirror at an amusement park or on the board walk at the beach. This indicates that the eye cannot focus light rays properly. Using Eyewear to Correct Astigmatism Two kinds of lenses are usually prescribed for correcting or improving the vision problems mentioned above: Eyeglasses add or subtract focusing power related to the cornea and lens of the eye. As the name implies, contact lenses are placed directly on the cornea, and they also add or subtract focusing power related to the cornea and lens. Using Laser Surgery to Correct Astigmatism Today, treatment of vision problems, such as astigmatism, includes some non-invasive surgical techniques. In line with this trend, the excimer laser is now the device of choice for eye [...]
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