DR. ATHUL S PUTHALATH

DR. AJAI AGRAWAL, PROF.SANJEEV KUMAR MITTAL

Abstract

PURPOSE

To study the effect of refractive errors on VEP recordings in pediatric population presenting to a tertiary care center of the Himalayan belt of North India

METHOD

This cross-sectional observational study assessed 240 eyes of pediatric population. 30 participants each were recruited into four groups; emmetropia, myopia, hypermetropia, and amblyopia. Pattern reversal VEP P-100 amplitude and latency were recorded for all.

RESULTS

P-100 amplitude was significant compared to P-100 latency in detecting the presence or absence of a refractive error. There was a significant association between severity of myopia and P-100 latency while severity of hypermetropia was with P-100 amplitude (P < 0.05). Receiver operating characteristics analysis revealed P-100 amplitude to be a good predictor of refractive error. CONCLUSION P-100 latency seemed to better correlate with myopia, while hypermetropia correlated with P-100 amplitude, and is the most significant predictor of refractive error.