Effect of Ocular Deviation on Stereopsis

Purpose: The aim of the present study is to evaluate Stereopsis in the presence of ocular deviation Methods: A pilot, cross sectional, observational study was performed at tertiary eye care centers. Subjects with ocular deviation between 10 to 40 prism diopters, corrected distance Visual Acuity should be greater than 6/18 and Age should be between 10 to 40 years of age were included in the study. Stereopsis was evaluated using the Titmus Fly Test. Mean scores of visual parameters were taken. Results: A total of 30 subjects were included in the study. Of these 53% of subjects were in the age group of 11-20 years, 40 % subjects were in the age group of 21-30 years and 7% subjects were in the age group of 31-40 years. 60% subjects were Female. Stereopsis was deteriorated to 80 secs of arc in the presence of ocular deviation. Conclusions: In cases of ocular deviation, stereopsis deteriorates significantly. Keywords: Ocular Deviation; Stereopsis