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The astigmatism is the distinctions in force of refractions of light beams on eye axes expressed in dioptries. The name of an illness in translation from Latin can be translated as "out of a point". At the healthy person to the image are focused in one point thanks to what he sees accurately. At an astigmatism focusing happens in two points because of an ellipsoidal form of a cornea of an eye in view of what the person sees not sharp, vague images. By the nature the disease is similar to short-sightedness and far-sightedness. There is an inborn and acquired astigmatism. Scientists established that addiction to wireless technologies leads to various diseases, including to an astigmatism.