We will bring you closer to the most important issues on this subject.
Myopia - otherwise myopic is one of the most common sight defects. It involves the incorrect focusing of light rays through the lens of the eye. In a properly accommodating eye, the images are focused on the retina, and the short-sighted before the retina.
Far-sightedness - otherwise hyperopia or hyperopia, is one of the most common sight defects. In a simplified way it boils down to the loss of image focus when looking at objects that are close, while the distant objects are seen clearly.
Astigmatism - otherwise discomfort is one of the disadvantages of sight. Occurs when the cornea or lens are not symmetrical. Distinguish astigmatism and short-sighted astigmatism. The causes of astigmatism are not exactly known.
Cataracts - the cataract is the clouding of the lens of the eye causing blurring and distortion of vision. The disease is the result of disorders of the metabolism of the lens and loss of its transparency and can lead to a complete loss of vision.
Glaucoma is an eye disorder associated with elevated intraocular pressure which, if left untreated, leads to damage and atrophy of the optic nerve, which results in irreversible blindness. Glaucoma has many varieties.
A prescription for glasses accurately determines what types of sphericity or non-glare glasses need your eyes for proper vision. However, before you get it, the ophthalmologist must take the exact measurement out of the eye and visual system. Contrary to appearances, the recipe for glasses is not so complicated in interpretation as it seems to us.
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