Qualitative and quantitative evaluation of binocular function in accommodative esotropia using pattern reversal visual evoked responses (VER)

Abstract

Pattern reversal visual evoked responses (PVER) were recorded in 31 children, in order to evaluate binocular functions in an objective manner. Ten cases had normal binocular functions, 21 cases had various degrees of accommodative esotropia and binocular impairment. Monocular and binocular recordings were performed for all the cases. PVER amplitudes of normal and accommodative esotropic children were compared using the dioptic method. Binocular summation was seen in accommodative esotropic children although less than that of the normal group. Thus, the authors thought it possible to assess objectively the presence of anomalous binocular vision sustained by anomalous retinal correspondence in accommodative esotropia by using PVER.

Key Words:

• accommodative esotropia
• binocular function
• binocular summation
• pattern reversal VER