Primary microtropia or microstrabismus with identity is a condition in which there is no manifest deviation on cover/uncover test, positive 4prism base out test, normal fusion, abnormal binocular single vision (BSV),foveal suppression scotoma and amblyopia. The aim of this study was to compare the macular and retinal nerve fiber layer (RNFL)thickness ofmicrotropic eye with the normal fellow eyes using optical coherence tomography. Fifteen patients of microtropia were evaluated. The mean macular thickness was 280+ _22 microns in microtropia& 281+_ 12 microns in fellow eye and the mean RNFL thickness was112.69+_15.12 and 107.47+_10.31 microns respectively.Macular thicknesses did not differ significantly, but RNFL thicknesses differ significantly. The Macula is significantly thinner in inner temporal quadrant (307+_29 micron) in microtropia as compared to normal fellow eye (321+_45 micron)p<0.05.