Causes of Eye Minus and cylinders
Thursday, June 18, 2015
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Minus or eye Myopia occurs due to a decreased ability see much but can see close to the better. Myopia occurs when the cornea (too convex) and lenses (strong convexity) consisting more or the eyeball is too long so the rays refracted focal point will be located in front of the retina.
Basically, the shortsighted progresivitas far would be a stable start age 20 years, meaning that it will not be a minus, or if increased only slightly.
Causes of Eye Minus and cylinders
Correction eye myopia by wearing the lenses minus/negative measure the lightest according to reduce strength in refraction of the eye. Usually treatment with glasses and contact lenses.
To prevent the addition of a minus, we recommend patients also undergo a healthy lifestyle for the eye, such as regulating the distance read 40-45 cm with enough light, rest the eyes every time reading a book or doing activities using a computer, as well as eating foods that contain lots of vitamin A.
Whereas the only way to reduce the minus with action medical is to do surgery on the cornea of the eye, i.e. the radial keratotomi, keratotomi fotorefraktif, or Laser In situ Interlamelar Keratomilieusis Asissted (LASIK).
A similar thing applies equally with astigmatism disorders.
Cylindrical, also known as astigmatism, corneal refraction disorder is on or the lens of the eye. This is because the curvature of the cornea or lens of the eye is not uniform.
Reftaksi abnormalities on astigmatism cause shadows fall not at one point, eventually causing objects appear blurry. This happens because the curvature of the cornea or the lens is not symmetric like balls.
The cause of astigmatism is not yet known but no one has mentioned that this disease is a genetic disease. This refraction abnormalities can be corrected with lenses astigmatism or eye surgery with as it has been mentioned before.
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