Dr.Nisha Rathi

Dr. SMITA SINGH, Dr. AJAY KUMAR SHUKLA, Dr.PRIYANKA GARKAL

Abstract

INTRODUCTION : Anterior corneal surface forms an important element which determines optical performance of the eye and outcome of refractive surgeries.

METHOD: Anterior corneal curvature was studied using placido based corneal topographer and patterns were classified according to Rabinowitz classification.

RESULTS : 88 eyes were studied in the age group of 20 to 40 years. The most common topographic pattern was symmetric bowtie (34.09 %) followed by asymmetric bowtie with superior steepening (25 %), asymmetric bowtie with inferior steepening (22.72%), inferior steepening (5.60 %), asymmetric bowtie with skewed radial axes (4.54 %), irregular (3.40 %), superior steepening (3.40 %), round (1.31%), symmetric bowtie with skewed radial axes and oval were not found. Symmetric bowtie also remained the most common pattern in low (≤-3 D), moderate (-3 to -6 D) and high myopia (> -6 D)

CONCLUSION: Symmetric and asymmetric bowtie are the most common topographic patterns in myopic eyes.