Jeon HS, et al. - The level of stereopsis and fusion in patients with anisometropia according to the presence of amblyopia was assessed in this study. According to the outcome obtained, the levels of stereopsis and sensory fusion with anisometropic glasses were significantly worse in the amblyopic anisometropia (AA) than in the non-amblyopic anisometropia (NA) group. The level of stereopsis in the NA group, however, did not differ significantly from that in the isometropic control, while the rate of fusion was significantly lower. Early prescription of anisometropic glasses is needed to improve visual acuity and binocularity in children with possible amblyopic anisometropia.