A person s vision loss, including myopia, hyperopia, astigmatism, which is caused by the most common myopia common cause of
refractive errors.
The so-called myopic refractive system, the focus gathered in front of the retina, after several twists and turns
parallel to the light did not adjust the state, did not form a clear image, lead to look at the distant and fuzzy.
Excimer laser correction of myopia, the excimer laser to remove corneal stroma central cornea, the corneal surface
becomes more than the original unit, reduce the curvature, the focus falls on the retina of the eye image, in order to
achieve a correction effect of myopia, which is carved in corneal contact lenses. The so-called hyperopia adjust the state of
parallel light to pass through the twists and turns of the refractive system, focus gathered on the retina, there is no
formation of a clear material such as lead fuzzy look close, fatigue. Excimer laser correction of hyperopia, the excimer
laser corneal central area? The surrounding matrix, the corneal surface becomes more than the original protrusions, the
curvature increases, so that the imaging focus on the retina of the eye to the correction of hyperopia.
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