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News » LENSES FOR ASTIGMATISM
LENSES FOR ASTIGMATISM
What are the lenses for astigmatism? They serve to correct the visual defect that goes under the name of ASTIGMATISM.
What is astigmatism?
Astigmatism is a very common visual defect. Many people do not even realize they have it. E \'in essence, caused by a deformation of the surface of the eye and of the internal structures of the eyeball.
As just one example, nell\'astigmatico the shape of the cornea is like a rugby ball while in the individual not suffering from astigmatism, the cornea is perfectly spherical like a basketball.
Astigmatism causes blurring of images in ALL DISTANCES, then both near and far. Astigmatism affects not only people of a certain age, as in the case of hyperopia, which usually manifests itself in the second age, but also affects children.
Through a recent study conducted in the United States on a sample of 2,523 children, it turned out that well 706 of them, or 28%, suffered from astigmatism at various levels.
HOW IT HAPPENS ASTIGMATISM.
You have constant headaches?
See blurry at all distances?
The images will appear distorted?
And \'likely that you suffer from astigmatism. A control by an ophthalmologist it may occur in a short time and, at this point will be issued a prescription for lenses which will serve to correct this defect of vision.