Background: Amblyopia is visual impairment that typically results from abnormal visual development during critical development period. Mostly all attention is given to amblyopic eye while refractive status of non-amblyopic eye is not given much attention. The conventional therapies are usually monocular which ignore the fact that the non-amblyopic eye has also refractive error which should also be focused while treating the amblyopic eye.

Objective: Specifically, this research will seek to establish the frequency and incidence of refractive errors; myopia and hyperopia in the non-amblyopic in amblyopes.

Materials and methods: The sample comprised 55 participants aged 12-30 years; 18 of them male (32.7 percent) and 37 females (67.3 percent). The following equipment was used for the assessment of refractive errors among the sample population: Auto

refractometer, retinoscopy, and a distance Log Mar chart, and trial box and pen torch. The findings show the significant refractive error in the non-amblyopic eye in amblyopes.

Results: Among the participants, 47.27 percent were hyperopic, 43.63 percent were myopic. From the total of 55 sample size only 9 percent were emmetropic in the non-amblyopic eye. The results show the high frequency of refractive error in the non-amblyopic eye in amblyopes.

Conclusion: The study shows high frequency of refractive error (90.9 percent) in the non-amblyopic eye in amblyopes. The results show the high frequency of myopia (43.6 percent) and hyperopia (47.3 percent). A small amount of emmetropia (9.1 percent) was also present. The results support and provide data base for the theory that amblyopia affects the both eyes and cause the binocular defects. The findings can help promoting the amblyopic treatment toward binocular therapies especially after the early age.

Keywords: Amblyopia, non-amblyopic eye, Refractive error.