Serin Didem, Karsloğlu Safak, Kyan Aysu, Alagöz Gürsoy
Department of Ophthalmology, Izzet Baysal Medical Faculty, Abant Izzet Baysal University, Bolu, Turkey.
Cornea. 2007 Sep;26(8):903-6. doi: 10.1097/ICO.0b013e3180950083.
To compare the repeatability of the Schirmer test (ST) administered with the eyes open (STo) with the repeatability of the ST administered with the eyes closed (STc).
STo and STc without anesthesia were alternately applied with 1-day intervals for a total of 6 times on 28 eyes of 14 healthy volunteers. The intraclass correlation coefficients (ICCs) and their 95% confidence intervals (CIs) were calculated to assess test-retest reliability of the STo and STc.
STc scores were found to be statistically lower than the STo scores in general (right eyes: t = 2.033, P = 0.048; left eyes: t = 3.474, P = 0.004). The ICC was 0.632 (right eyes) and 0.618 (left eyes) for STo and 0.943 (right eyes) and 0.933 (left eyes) for STc.
Our study suggests that administering the ST with the patient's eyes closed produces less variable results and more repeatability than STo in normal subjects. Although our results may not extend to dry eye patient populations, we propose that STc without anesthesia can be considered by those ophthalmologists who frequently use the ST as an adjunct to the differential diagnosis of dry eye in patients presenting with ocular discomfort, making ST a more reliable test in everyday practice.
比较睁眼施密特试验（STo）与闭眼施密特试验（STc）的重复性。
对14名健康志愿者的28只眼睛，每隔1天交替进行一次无麻醉的STo和STc，共进行6次。计算组内相关系数（ICC）及其95%置信区间（CI），以评估STo和STc的重测信度。
总体上，发现STc得分在统计学上低于STo得分（右眼：t = 2.033，P = 0.048；左眼：t = 3.474，P = 0.004）。STo的ICC右眼为0.632，左眼为0.618；STc的ICC右眼为0.943，左眼为0.933。
我们的研究表明，在正常受试者中，与STo相比，让患者闭眼进行施密特试验产生的结果变异性更小，重复性更高。尽管我们的结果可能不适用于干眼患者群体，但我们建议，那些经常将施密特试验作为眼部不适患者干眼鉴别诊断辅助手段的眼科医生，可以考虑采用无麻醉的STc，从而使施密特试验在日常实践中成为更可靠的检查。
Zotero 插件