DR. SAJAN DEV KESAR

Dr.Pallavi Mishra

Abstract

Binocular summation (BiS), defined as the superiority of binocular over monocular performance on visual threshold tasks, is a measure of binocular function that is not well characterized in strabismic patients.

The most significant benefit of binocular vision is stereopsis, which is the pinnacle of binocular fusion.Currently, binocular function are assessed in clinical settings by evaluating fusion and stereoacuity.

Individuals showed a significant improvement in BiS scores of visual acuity (ETDRS letters) and contrast sensitivity (Pelli Robson chart) postoperatively, as compared to their preoperative data.

It was hypothesized that if a manifest strabismus exists, the degraded image that falls outside of the fovea of the deviated eye may lead to an induced difference in resolution of a particular target, and therefore cause a decrease in BiS, or even binocular inhibition on clinical testing.Our study sample was heterogeneous, small and included multiple age groups .