One of the main lens is the cornea - the eye is the surface of the transparent fabric. Cornea refracts rays, which then fall on the retina. Ideally, the cornea must be spherical, like a dome, and symmetrical. The vertical and horizontal axes of the cornea must be identical. If the cornea has an irregular shape, there is astigmatism eye - a phenomenon when one axis more refracts light, and the other is weaker, so the beam of light falls on the retina is blurred. Correct the defect by using special cylindrical lens using a contact lens or via surgery. With surgery we make the cornea, such as it should be - sphericity. Most often this is done at the expense of refractive surgery using an excimer laser. " Astigmatism. Transfer "Live healthy", says prof.
Ideal Health Doctor
Konovalov astigmatism eyes There are three degrees of astigmatism of the disease: a low degree of astigmatism (3 D); astigmatism moderate (3-6 D); astigmatism high (more than 6 D). The nature of astigmatic eye Astigmatism eye can be either congenital or acquired. Congenital astigmatism often occurs in children. Small astigmatism is considered to be "functional", that is, does .
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One of the main lens is the cornea
India, new york, new york
Published 7 years ago
ID #28952
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One of the main lens is the cornea
India, new york, new york,
Published 7 years ago
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