Association Of Ocular Dominance And Accommodation In Myopia Adult

Purpose:To determine the association between ocular dominances and accommodative factors in myopic adults.Methods:Thirty-five subjects aging from18to35with myopia range from-2.00DS to-10.00DS, anisometropia low than1.5DS, BCVA≥1.0were recruited consecutively. Ocular dominance was determined using the hole-in-the-card test and thumb test. Refractive error were measured with objective and subjective optometries, amplitude of accommodation were measured by push-up test, accommodative lag were measured by FCC, accommodative facility were measured by flipper test. Results were analyzed with pared t-test using SPSS17.o software.Results:The amplitude of accommodation (9.69±2.30vs9.60±2.37, P=0.294), accommodative facility (11.08±4.20vs10.63±4.60, P=0.260) and accommodative lag (0.11±0.27vs0.18±0.33, P=0.106) between dominant and nondominant eyes in all subjects had no statistic difference. The amplitude of accommodation (9.48±2.29vs9.33±2.49, P=0.319;9.91±2.35vs9.88±2.26, P=0.749), accommodative facility (10.50±4.70vs9.99±4.90, P=0.116;10.70±3.77vs11.25±4.27, P=0.295) and accommodative lag (0.14±0.31vs0.18±0.32, P=0.419;0.08±0.23vs0.18±0.35, P=0.168) between dominant and nondominant eyes both in right dominance and left dominance subjects had no statistic difference.Conclusions:The findings demonstrate that the dominant eye in myopia adults with low anisometropia is the major eye of fixation and seems like having more opportunity to be used but it shows no stronger amplitude of accommodation, less accommodative lag and better accommodative facility.