Association Between Ocular Dominance and Refraction
Author(s):
Ilker Eser MD; Daniel S Durrie MD; Frank Schwendeman OD; Jason Stahl MD
Topic:
Refractive Surgery
Full Text:
Abstract:
Purpose: To investigate the association between ocular dominance and refraction. Methods: A retrospective study of the cycloplegic refraction of 2453 consecutive subjects with a mean age of 46 ± 12 years was performed. Of the subjects, 47% were males and 53% were females. Subjects who had previous eye surgeries, ocular diseases, or three lines of BCVA difference between eyes were excluded. Ocular dominance was determined using the hole-in-the-card test. Results: Right eye was dominant in 67% and left eye in 33% of subjects. Males had a higher right-eye dominance (70%) than females (65%) (P = .0168) with a mean cycloplegic spherical equivalent (SE) of –2.12 and –2.38, respectively. This higher rate of right-eye dominance was seen at all levels of SE refractive error. Mean BCVAs were 20/19 in both right and left eyes (P > .05), with a mean SE of -2.25 D ± 3.63 and -2.26 D ± 3.66 in the right and left eyes, respectively. Neither mean SE difference nor BCVA difference (|LogMAR| < 0.3) between eyes was found to correlate with eye dominance. Conclusion: Detecting dominance is of great importance to an eye surgeon for the patients who need spectacle correction or refractive surgery, especially presbyopic subjects. The hole-in-the-card test is a novel method that is easy to perform for both patients and doctors. Gender appears to be a factor, but not SE refractive error.
Note:
* Author names with an asterisk indicate a financial interest in the subject matter of this presentation.
