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Astigmatism



What is Astigmatism?

Astigmatism refers to an eye condition associated with blurry vision. The condition develops when the cornea has an irregular shape or when the lens has an irregular curve, which prevents the retina from focusing on light clearly. Astigmatism is common and present, to some degree, in most individuals. Treatment can help relieve vision problems associated with this condition.

What Causes Astigmatism?

Changes in the curvature of the lens or an irregularly shaped cornea cause astigmatism. These changes or irregular shapes can develop over time or occur due to trauma, eye surgery, or a condition known as keratoconus. When this happens, the retina is unable to focus light into one point, which makes images look blurry. Astigmatism can also cause headaches and considerable discomfort, in addition to vision problems.

How can Astigmatism be Diagnosed?

Dr. Hart-Moreland offers diagnostic services for astigmatism, which can be done in several different ways. These methods include performing visual acuity tests, refraction, and keratometry or topography. Visual acuity tests involve having patients read a distance chart, which determines whether vision is 20/20 or less. Topography or keratometry involves measuring the curvature of the lens and creating a map of the cornea. Refraction involves having patients look through various lenses to determine which ones provide the clearest vision.

How is it Treated?

Dr. Hart-Moreland provides treatment for astigmatism by determining the right prescription for corrective lenses to help patients see clearly. Many patients with astigmatism opt for eyeglasses because certain types of contact lenses aren’t effective at correcting astigmatism. Gas-permeable contacts also can be used to correct astigmatism. At East Lake Eye Care, Dr. Hart-Moreland helps patients find the most comfortable and effective corrective eyeglasses and contact lenses to correct their vision. Call or book an appointment online today!




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