http://astigmatismtratament.wordpress.com/2014/06/22/astigmatismul-simptome-cauze-si-cum-se-corecteaza/
Afla ce este astigmatismul si cum poti vindeca astigmatismulnatural
What creates an astigmatism? It's primarily genetic, and it's usually present to some degree at birth. It may increase or decrease with age. A person may also develop an astigmatism following an injury to the eye, eye disease, or eye surgery.
An astigmatism results when one or both of the two parts of the eye that bring images into focus - the cornea and the lens - are aspheric. This indicates that they are not perfectly round and smooth spheres, like a ping pong ball.
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