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Gas permeable contact lenses are rigid so they retain their shape and essentially replace the misshapen cornea as the primary light-bending device. Soft contact lenses engineered to correct nearsightedness and farsightedness. Laser surgery also utilizes wavefront technology, which maps the eye to create a custom profile showing where to make changes. Some of the specialized treatments for astigmatism available at the Eye Care Center of Kauai include:Īdvanced laser surgery, such as LASIK, offers precise treatment of astigmatism by correcting the shape of the cornea. Prescriptions for eyeglasses and contact lenses are written so that they correct the multiple refractive errors found in your eyes during a complete eye examination. How is astigmatism treated?Īstigmatism can be corrected with eyeglasses, contact lenses, or refractive surgery. That’s why regular eye examinations are an important tool for finding and correcting vision problems in children. It often occurs in children, who probably won’t realize they have a vision problem. It may also cause eyestrain, headaches, or general eye discomfort, especially after reading. You may experience blurry vision or areas of distorted vision.
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Since more than one ray of light reaches the retina, and the light can hit various locations inside the eye, astigmatism can cause nearsightedness, farsightedness, or both. This tends to scatter the light rather than focusing it to properly hit the lens or retina. When the cornea is elongated, or shaped like a football instead of its typical round shape, the light bends at different angles, depending on where it strikes the cornea. Normally, both structures are curved equally in all directions. What causes astigmatism?Īstigmatism is usually caused by a misshapen cornea, but it can also be due to a change in the shape of the lens. As a result, you don’t have clear vision. The light ends up hitting several spots on the retina, focusing in front of the retina, behind the retina, or both. The lens then directs the light to a very precise spot on the retina and the retina converts light rays into energy that travels to the brain.Īstigmatism is a refractive error in which light isn’t properly focused on the retina. When light reaches your eye, the cornea (the clear, round dome covering the pupil) refracts the light, bending it so that it’s focused on the lens.