Cho P, Yap M
Department of Optometry & Radiography, Hong Kong Polytechnic, Hung Hom.
Optom Vis Sci. 1993 Oct;70(10):828-31. doi: 10.1097/00006324-199310000-00009.
We investigated the effect of age and gender on the tear break-up time (TBUT) of 2 groups of normal, asymptomatic subjects [92 Hong Kong-Chinese (HK-Chinese) and 76 Singapore-Chinese (S-Chinese)] using the conventional fluorescein-instillation technique. The mean TBUT (+/- SD) is 6.5 (+/- 4.0) s for the S-Chinese and 7.8 (+/- 2.4) s for the HK-Chinese. The mode was 7.0 s for HK-Chinese and 5.0 s for S-Chinese. About 80% of the subjects of each group have TBUT less than 10 s. The TBUT of both groups of Chinese decreases with age. It was found that TBUT was significantly different between the two sexes in the S-Chinese but no equivalent effect was observed in the HK-Chinese.
我们使用传统的荧光素滴入技术，研究了年龄和性别对两组正常无症状受试者[92名香港华人（HK - 华人）和76名新加坡华人（S - 华人）]泪膜破裂时间（TBUT）的影响。S - 华人的平均TBUT（±标准差）为6.5（±4.0）秒，HK - 华人的为7.8（±2.4）秒。HK - 华人的众数为7.0秒，S - 华人的为5.0秒。每组约80%的受试者TBUT小于10秒。两组华人的TBUT均随年龄增长而降低。研究发现，S - 华人中两性的TBUT存在显著差异，但在HK - 华人中未观察到类似效应。
