Infantile nystagmus is involuntary, bilateral, conjugate and rhythmic oscillations of the eyes which may present at birth or develop within the first 6 months of life. It may be idiopathic appearing without visual or neurological impairment or may be secondary to an afferent visual defect such as foveal hypoplasia, congenital cataract, retinal dystrophy or optic atrophy. Aiming at improving outcome of head turn in idiopathic infantile nystagmus, comparison between the efficacy and safety of graded Anderson procedure and Kestenbaum procedure is essential.
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Degree of head turn
Timeframe: Base line and 6 months postoperatively.