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The norm is the deviation in diffraction between the two eyes up to two diopters. Alternately closing your eyes, you will notice that one of them sees much better. Parents whose children suffer from anisometry notice that the child squints while reading books or studying distant objects.
The patient does not observe discomfort, both eyes see normally, the concept of Avodart pills and healthy eye is not distinguished. In the case when the difference in diffraction is higher than 2 diopters, an anisometry state begins, characterized by: Deterioration in the quality of binocular vision.
The appearance of concomitant symptoms - diplopia, myopia (false), fog in the eyes. Quick fatigue when working with text or small objects. The body undergoes a process of restructuring of Dutasteride process, in which the healthy eye takes on the basic load. This causes fatigue, which is accompanied by headaches. It has been proven that anisometropia is caused both by the different refractive power of the optical apparatus of one and the other eye, and by the different length of the anatomical axis in both eyes. Most often it is congenital.
Regarding the frequency of anisometropia in humans, there are no definite figures in the ophthalmological literature. However, many authors note that mild degrees of anisometropia are more common than is commonly believed. Anisometropia of 2.00 or more causes a violation of the act of binocular vision (especially in children) due to the difficulty of merging images that are indistinct in one or both eyes. In this case, the image on the retina of the worse seeing eye begins to be suppressed, monocular vision and concomitant strabismus appear.