Infantile esotropia is defined as the onset of constant esodeviation in children less than 6 months of age.There are several other clinical findings that often accompany infantile esotropia including: large amplitude of the angle (greater than 30 prism diopters), dissociated vertical deviation, dissociated horizontal deviation, inferior oblique overaction, latent nystagmus, cross fixation with pseudo abduction deficit, low degree of hyperopia (less than 3 diopters), and amblyopia. The incidence of infantile esotropia is approximately 1%,making this an important issue for pediatric ophthalmologist.