主利眼的研究

關於主利眼的研究之前我有介紹一篇
汕頭大學/香港中文大學聯合國際眼科中心515041目的：探索屈光參差性近視者的眼優勢和近視程度的相關性及對近視進展的影響。

主利眼有時在驗光過程中做某些決定時(例如驗光終點若兩眼清晰度不同，要讓哪一隻眼睛較清楚?)，會是一個參考的依據，主利眼的神經衝動輸入大腦時要比非主利眼強。

以下這篇論文探討了主利眼與不等視、年齡與性別的關係。
大概是說統計上，非主利眼的屈光不正度數會較高。

其結論如下
1.主利眼在右眼佔61.7%，左眼35.6%
2.兩眼度數差距在0.50D以下，與主利眼關係不明顯
3.兩眼度數差距在2.50D以上，非主利眼近視度數較高的佔63.7%，主力眼近視較高的佔36.3%。
4.非主利眼通常較主利眼散光度數較高。
5.兩眼散光度數差距在2.50D以上，非主利眼散光度數較高者佔75%。
6.在29歲以下及30-39歲的族群，非主利眼有明顯較高的散光。

摘要如下

Invest Ophthalmol Vis Sci. 2011 Nov 25;52(12):9166-73. Print 2011.

Association between ocular dominance and spherical/astigmatic anisometropia, age, and sex: analysis of 10,264 myopic individuals.

Linke SJ, Baviera J, Munzer G, Steinberg J, Richard G, Katz T.

Source

Department of Ophthalmology, University Medical Center Hamburg-Eppendorf (UKE), Martinistrasse 52, Hamburg, Germany. slinke@uke.uni-hamburg.de

Abstract

PURPOSE:

To determine the association between ocular dominance and spherical or astigmatic anisometropia, age, and sex.

METHODS:

Medical records of 10,264 myopic refractive surgery candidates were filtered. Ocular dominance was assessed with the hole-in-the-card test. Manifest refractive error was measured in each subject and correlated to ocular dominance. Only subjects with corrected distance visual acuity (CDVA) of >20/22 in each eye were enrolled, to exclude amblyopia. Associations between ocular dominance and refractive state were analyzed by means of the t-test, χ(2) test, Spearman correlation, and multivariate logistic regression analysis.

RESULTS:

Right and left eye ocular dominance was noted in 61.7% and 35.6% of the individuals. Ocular dominance had no significant impact on SE refraction in subjects with SE or cylindrical anisometropia <0.5 D. For anisometropia >2.5 D (n = 278) the nondominant eye was more myopic in 63.7% (SE -5.8 ± 2.64 D) compared to 36.3% (-4.69 ± 2.39 D; P < 0.001; adjusted P (Padj) < 0.001) for the dominant eye being more myopic. Nondominant eyes showed higher astigmatic power than dominant eyes (-0.95 ± 0.91 D versus -0.89 ± 0.84 D; P < 0.001). For astigmatic anisometropia >2.5 D, nondominant eyes exhibited a higher amount of astigmatism in 75% of subjects. Nondominant eyes of subjects <29 years and 30 to 39 years of age had a significantly higher astigmatic power than did dominant eyes of the same age group.

CONCLUSIONS:

In contrast to previous reports, this study, including myopic refractive surgery candidates, revealed that the nondominant eye was more myopic for SE anisometropia >2.5 and more astigmatic for cylindrical anisometropia >0.5 D.