The Refractive Status of Middle-Aged and Elderly Population in Chin-Shan Xiang, Taipei County

台北縣金山鄉中老年人屈光狀態之調查

林隆光(Luke L-K. Lin) ； 施永豐(Yung-Feng Shih) ； 何子昌(Tzyy-Chang Ho) ； 王清泓(Tsing-Hong Wang) ； 陳建仁(Chien-Jen Chen) ； 洪伯廷(Por T. Hung)

《中華民國眼科醫學會雜誌》 40卷1期 (2001/03) Pp. 1-8

https://doi.org/10.30048/ACTASOS.200103.0001

摘要

前言：爲了觀察台灣中年（40至65歲）及老年人（超過65歲）視力及屈光之狀態
方法：共計在1992年有3901位居民（中年2634位，老年1267位）及在1994年有2817位居民（中年1866位，老年951位）接受視力及電腦驗光檢查。如果視力低於0.8，則作更進一步之檢查。全部在1992年有1267位（中年976位，老年291位）及1994年有1814位（中年1406位，老年408位）接受完整的眼科檢查，包括裂隙燈，睫狀肌麻痺後屈光，眼底檢查及眼壓，眼軸長之測定。
結果：大約有半數之中年人其最佳矯正視力大於0.8，然而在老年人只有10%。約有40%以上的老年人其視力介於0.1至0.4之間。更有15%的老年人其視力低於0.1，但中年人只有5%。睫狀肌麻痺後之屈光狀態顯示偏向遠視。而老年人之屈光狀態表現輕度遠視減少而輕度近視增加。
結論：最佳矯正視力隨著老化而減退。老年人口的近視偏向可能由於白內障的形成。

並列摘要

Introduction: To investigate the distribution of visual acuity and refractive status on middle-aged (40 to 65 years old) and elderly (＞65 years old) people in Taiwan.
Methods: A total of 3901 residents (middle-age 2634, elderly 1267) in 1992 and 2817 residents (middle-age 1866, elderly 951) in 1994 received visual acuity and autorefractor exam. If visual acuity less than 20/25, further ocular exams were performed. Totally, 1267 cases (middle-age 976, elderly 291) in 1992 and 1814 cases (middle-age 1406, elderly 408) in 1994 received a complete ophthalmologic exam, including slit-lamp exam, cycloplegic refraction, funduscopy, intraocular pressure, and biometric axial length.
Results: Around half of middle-aged participants had their corrected visual acuity better than 20/25. However, only 10% were found in elderly participants. About 40% of elderly populations had their corrected visual acuity between 20/200 and 20/50. Besides, 15% of elderly populations were less than 20/200, but for the middle-aged populations, the figure was only 5%. The refractive status showed hyperopic shift after cycloplegia. The percentage of mild hyperopia decreased and mild myopia increased in elderly population.
Conclusion: The corrected visual acuity declined with age. The myopic shift after 65 years old might be due to cataract formation.

並列關鍵字

visual acuity ； refractive status ； myopia ； hyperopia