Patient Education |
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| EDUCATION
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Select a treatment or condition to learn more about it: With Nearsightedness the eye is longer (or cornea is steeper) causing light to focus in front of the retina. The image is therefore out of focus on the retina and vision is blurred. With astigmatism, an abnormal curvature of the cornea in one direction causes light travelling in one plane, the horizontal (blue) plane in this case, to be focused in front of the retina. With hyperopia the eye is shorter (or cornea is flatter) causing the focal point of light to be behind the retina. The image is therefore out of focus on the retina and vision is blurred. With a cataract, the lens is cloudy, causing the image to become blurred and yellowed. Vision is hazy and colors become faded. In some patients after cataract surgery, the membrane or "envelope" into which the intraocular lens is placed will become cloudy over time. This cloudy membrane is called an "after cataract" or posterior capsular opacification. Due to injury or disease, the cornea may become damaged and opaque. Light may no longer effectively pass through the damaged cornea resulting in diminished vision. |
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