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Specialty Lens and Keratoconus Center at Vision Professionalsserves patients from Columbus, Worthington Hills, New Albany, and Sunbury, Ohio and surrounding communities.The cornea is the clear, dome-shaped tissue on the front of the eye that covers the pupil and iris. To schedule your appointment or learn more about what we offer, call Specialty Lens and Keratoconus Center at Vision Professionals today! Our goal is to help all patients achieve crisp and comfortable vision, no matter their level of astigmatism or corneal shape. If you’ve been told that you have astigmatism and that your current contacts or glasses just aren’t cutting it, ask your optometrist whether scleral contact lenses are right for you.Īt Specialty Lens and Keratoconus Center at Vision Professionals, we provide a wide range of eye care services, including custom scleral lens fittings and consultations. In fact, patients typically report that sclerals provide sharper vision than other types of contact lenses. These specialized rigid lenses gently rest on the white part of the eye (sclera) and don’t place any pressure on the sensitive cornea, making them suitable for even highly astigmatic eyes.įurthermore, scleral contact lenses contain a nourishing reservoir of fluid that sits between the eye and the inside of the lens, providing the cornea with oxygen and hydration all day long. They have a larger diameter than standard lenses, and thus cover the entire front surface of the eye. Scleral contact lenses are customized to each patient. Why are Scleral Lenses Ideal For Astigmatism? Regular hard lenses can often correct astigmatism better than soft lenses, but they, too, have limitations: these lenses are smaller and may also move around too much. This, in turn, reduces visual clarity and comfort.
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Standard soft lenses are limited in the amount of astigmatism they can correct, as these lenses move around on the cornea due to the cornea’s irregular shape. Why Can’t Individuals With High Astigmatism Wear Standard Contact Lenses?Ī highly astigmatic cornea has an irregularly shaped surface that isn’t compatible with standard soft contact lenses. Refractive surgery is also an option, but comes with the risk of surgical complications. Scleral contact lenses are suitable for moderate to severe astigmatism. Toric contact lenses are a popular choice for patients with mild or moderate astigmatism due to their unique focusing features and oblong shape.
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But for patients with high levels of astigmatism, standard contact lenses may not be an option. In cases of mild to moderate astigmatism, the blurred vision can be easily corrected with prescription glasses or contact lenses. Both myopia and hyperopia can occur with a spherical cornea. Hyperopia occurs when the corneal power is too weak, so the light rays focus behind the retina, not on it. Myopia occurs when the corneal focusing power is too high and the light focuses in front of, instead of directly, on the retina. What’s the Difference Between Astigmatism, Nearsightedness and Farsightedness?Īlthough all 3 of these refractive errors negatively affect visual clarity, they are caused by different mechanisms.Īstigmatism is a result of a non-spherical cornea, which causes two focal points and blurry vision. Most people with myopia (nearsightedness) or hyperopia (farsightedness) also have some level of astigmatism. The main symptom of astigmatism is blurred vision, but it can also cause symptoms like:Īstigmatism affects approximately 1 in 3 individuals around the world. Since the light is no longer focused on the retina, it results in blurred vision at all distances. When the cornea is misshapen, it refracts light incorrectly, creating two focus points of light entering the eye. The cornea is the outer front covering of the eye and is partially responsible for refracting light onto the retina. What is Astigmatism?Īstigmatism is a common refractive error caused by a cornea that isn’t perfectly spherical. But how much do you really know about this all-too-common refractive error?īelow, we answer some of the most frequently asked questions about astigmatism and explain why scleral contact lenses are often prescribed to astigmatic patients. If you wear glasses or contact lenses, you probably have some degree of astigmatism.