Management of Infantile Esotropia

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Abstract
The population of patients with infantile esotropia is etiologically and neuroanatomically heterogeneous, and major advances in management will probably require more accurate subgroup delineation. Amblyopia is relatively common in patients with infantile esotropia. It should always be suspected and, when found, should be vigorously treated. Present methods of amblyopia detection and evaluation in young children are still imperfect. Most clinical evidence suggests rather strongly that sensory and motor functions are more nearly normal if alignment (within 10 prism diopters of orthotropia) is attained within the first 2 years of life. Whether alignment obtained within the first year of life provides higher grades of binocular vision is less certain. Virtually all patients with infantile esotropia fail to develop normal binocular vision. Central scotomas are almost always identifiable, even in patients with optimal motor alignment and with the highest levels of binocular vision. Past surgical protocols have tended to produce an excess of under-corrections. More recent surgical protocols are more generous in terms of millimeters of surgery per prism diopter of deviation. Higher cure rates are now being reported. Patients who are successfully aligned early in life still need careful postoperative monitoring for amblyopia, nystagmus, inferior oblique overactions, dissociated vertical divergence, and accommodative esotropia. These patients require frequent follow-up visits until they reach the age of approximately 9 years.

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