Prevalence of Anisometropia in Taiwanese Schoolchildren

台灣學童不等視的盛行

施永豐(Yung-Feng Shih) ； 蕭朱杏(Chu Hsing Kate Hsiao) ； 溫淑惠(Shu-Hui Wen) ； 林隆光(Luke Long-Kuang Lin) ； 陳建仁(Chien-Jen Chen) ； 洪伯廷(Por-Tying Hung)

《Journal of the Formosan Medical Association》 104卷6期 (2005/06) Pp. 412-417

https://doi.org/10.29828/JFMA.200506.0005

並列摘要

Background and Purpose: This study investigated the prevalence and distribution of anisometropia in Taiwanese schoolchildren using nationwide data from refractive surveys performed in 1995 and 2000.
Methods: Complete survey data was obtained for 11,175 students in 1995 and 10,878 students in 2000. The refractive status of each student was measured using an autorefractometer under cycloplegia and rechecked with retinoscopy. The difference in refractive status between each participant's eyes was determined. Chi-squared statistic was used to assess the difference between the 2 surveys. Multiple linear regression was used to determine the trend and effects of covariates.
Results: Most of the schoolchildren (77.6% in 1995, 71.9% in 2000) were not anisometropic. Most of the anisometropic differences were in the range 0.5 to 1.0 D (14.1% in 1995 vs 17.9% in 2000). About 6% of schoolchildren in 1995 and 7.0% in 2000 had anisometropic differences in the range from -1.0 to -2.0 D. Fewer than 4% of students had level of anisometropia greater than 2.0 D (2.7% vs 3.2%, respectively). The prevalence of anisometropia and the extent of anisometropia difference both increased with age add with maximal myopic refraction (both p＜0.0001). Both the prevalence and extent of anisometropia showed significant differences between the 2 sur1eys (both p＜0.0001).
Conclusions: Most of the Taiwanese schoolchildren surveyed were non-anisometropic, The prevalence and amount of anisometropia were significantly increased from 1995 to 2000. The mechanisms responsible for these increases have not been determined, but may be related to increase of myopic refraction.

並列關鍵字

Anisometropia ； Myopia ； Prevalence