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Abstract

The current study aim to evaluate the visual acuity of squint (esotropia) and its, related to hypermetropia in children. The test of visual acuity without spectacles to the patient’s eyes, refraction test by autorefractometer or retinoscope, then visual acuity with spectacles as well as the prescription measuring were done to all patients. Also, the angleof deviation was measured by corneal light reflex. Finally, the squint was corrected by wearing spectacles regarding the occlusion (close the normal eye). The value of the slope of esotropia is larger than exotropia because there is an overcorrection in the degree of myopia, so the slope is decreasing. The deviation in exotropia is decreasing, the overcorrection and the correction of deviation more rapid and positive in exotropia. In esotropia note that the deviation rate was (22) has the highest number of patients, but with a different degree of correction. Also, the deviation rate of (12) contains several patients but with different degrees of correction, and the deviation rate of (27) contains one patient and is correct by +5.00 D.S. We conclude the relationship between the degrees of squint is directly proportional to the refractive error of the patient, the rate of deviation (squint) increases in esotropia according to the convergence so it does not need a convex lens, the rate of deviation (squint) decreases in exotropia according to the divergence so it does need a convex lens and the uses of the correction lenses with a long time by the patient done good results to correct the squint. We recommended usingcorrective lenses is very important to correct the squint and refractive errors.

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