The study between dominant eye and nondominant eye in myopic anisometropia
2016
Objective
To investigate the refractive error and axial length between dominant eye and nondominant eye in patients with myopic anisometropia, explore the association between dominant eye and refractive error.
Methods
A total of 69 myopic anisometropia subjects with corrected distance vision acuity ≥0.8 were enrolled, all kinds of eye diseases were excluded. Refractive error, axial length and ocular dominance were measured in all patients. Statistic analysis used x2 test, Wilcoxon test and Paired t test.
Results
Dominant eye (-3.65±2.24D) were more myopic than nondominant eye (2.64±2.20D, paired t test, P 0.05); dominant eye had a longer axial length than nondominant eye (24.63±0.90mm vs 24.22±1.03mm, respectively, Paired t test, P<0.005, Especially when the degree of myopic anisometropia was between 1.00D and 2.49D, dominant eye had lower astigmatism than nondominant eye (Wilcoxon test, P<0.05). Right and left ocular dominance was noted in 73.9% and 26.1% of the individuals; dominant eyes were more myopic in 76.5% and 62.9% when the myopic anisometropia was 1.00-2.49D and over 2.50D.
Conclusions
The present study shows the dominant eye has a greater degree of myopia, axial length than the nondominant eye in myopic anisometropia. The dominant eye tends to be the more myopic eye.
Key words:
Dominant eye; Myopia; Anisometropia; Axial length
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