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C. Cheng, H. Tsai, W. Hsia, W. Hsu; The Association of Ocular Dominance and Myopic Anisometropia . Invest. Ophthalmol. Vis. Sci. 2003;44(13):4786.
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Purpose: To determine the relationship between ocular dominance and the degree of myopic refractive errors in patients with anisometropia. Methods: We recruited 40 myopic patients and divided them into two groups, aniosmetropia (difference of spherical equivalence between two eyes > 1.0 diopter [D], N = 18) and isometropia (difference ≤ 1.0 D, N = 22). The degree of refractive errors was measured by auto-refraction and the dominant eye of each subject was determined by hole-in-card test. Results: There was no difference in the frequency of the right or left pattern of dominant eyes between the two groups (P = 0.564). In the anisometropia group, the dominant eyes have significantly more myopic refractive errors (-5.70 ± 2.74 D) than the non-dominant eyes (-3.66 ± 4.52 D) (P = 0.004). In the isometropia group, there was no such difference between the dominant and non-dominant eyes (-4.88 ± 2.87 D vs. -5.01 ± 2.93 D, P = 0.352). Conclusions: The results suggest that the dominant eyes may acquire higher myopic refractive errors than the non-dominant eyes. Ocular dominance may play a role in myopia progression.
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