{"title":"Relation between tear breakup time and spontaneous blink rate","authors":"Mosaad Al-Abdulmunem PhD (FAAO, FIACLE)","doi":"10.1016/S0892-8967(00)00033-X","DOIUrl":null,"url":null,"abstract":"<div><p>Blinking plays an important role in maintaining corneal integrity by spreading of the tear film. Although there are studies reporting on blink rate and tear stability, a consensus has not been reached. Therefore, the blink rate and tear breakup time (TBUT) test were performed in 159 healthy young females. The mean TBUT and blink rate values observed were 18.9 seconds and 18.6 blinks/min, respectively. A significant correlation (r = 0.74, p < 0.05) between TBUT and blink rate was found. These results demonstrate that blink rate may be dependent on TBUT, at least among subjects with TBUT less than 19 seconds. Thus, blink rate may depend not only on cortical stimuli but also on the stability of the tear film.</p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 5","pages":"Pages 117-120"},"PeriodicalIF":0.0000,"publicationDate":"1999-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(00)00033-X","citationCount":"48","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International contact lens clinic (New York, N.Y.)","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S089289670000033X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 48
Abstract
Blinking plays an important role in maintaining corneal integrity by spreading of the tear film. Although there are studies reporting on blink rate and tear stability, a consensus has not been reached. Therefore, the blink rate and tear breakup time (TBUT) test were performed in 159 healthy young females. The mean TBUT and blink rate values observed were 18.9 seconds and 18.6 blinks/min, respectively. A significant correlation (r = 0.74, p < 0.05) between TBUT and blink rate was found. These results demonstrate that blink rate may be dependent on TBUT, at least among subjects with TBUT less than 19 seconds. Thus, blink rate may depend not only on cortical stimuli but also on the stability of the tear film.
眨眼通过泪膜的扩散对维持角膜的完整性起着重要的作用。虽然有研究报道了眨眼率和泪液稳定性，但尚未达成共识。为此，对159名健康年轻女性进行了眨眼率和泪液破裂时间(TBUT)测试。观察到的平均TBUT和眨眼速率值分别为18.9秒和18.6次/分。相关性显著(r = 0.74, p <TBUT与眨眼频率之间的差异为0.05)。这些结果表明，至少在眨眼时间少于19秒的受试者中，眨眼频率可能依赖于TBUT。因此，眨眼频率可能不仅取决于皮层刺激，还取决于泪膜的稳定性。
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