QUALITATIVE AND QUANTITATIVE-EVALUATION OF BINOCULAR FUNCTION IN ACCOMMODATIVE ESOTROPIA USING PATTERN-REVERSAL VISUAL-EVOKED RESPONSES (VER)

Pattern reversal visual evoked responses (PVER) were recorded in 31 ch ildren, in order to evaluate binocular functions in an objective manne r. Ten cases had normal binocular functions, 21 cases had various degr ees of accommodative esotropia and binocular impairment. Monocular and binocular recordings were performed for all the cases. PVER amplitude s of normal and accommodative esotropic children were compared using t he dioptic method. Binocular. summation was seen in accommodative esot ropic children although less than that of the normal group. Thus, the authors thought it possible to assess objectively the presence of anom alous binocular vision sustained by anomalous retinal correspondence i n accommodative esotropia by using PVER.