Trbolova Alexandra, Ghaffari Masoud Selk
Clinic of Small Animals, University of Veterinary Medicine and Pharmacy, Kosice, Slovakia.
Department of Clinical Sciences, College of Veterinary Medicine, Karaj Branch, Islamic Azad University, Alborz, Iran.
Acta Vet Scand. 2017 May 31;59(1):35. doi: 10.1186/s13028-017-0303-2.
The Schirmer tear test (STT) is widely used in both human and veterinary ophthalmology. Two types of STTs have been developed: STT I and SST II. The STT I measures the basal and reflex tear production and is the most widely used STT. However, several factors influence the STT results such as the person performing the test and the location of the strip placement within the conjunctival sac. The aim of this study was to measure the basal and reflex tear production (STT I) in clinically normal horses with open versus closed eyes.
Forty clinically healthy horses without any ocular diseases were included. On day 1, the STT I was first performed on all the horses with the eyes open followed by an STT I with closed eyes performed 30 min later. On day 2, all horses had their eyes closed during the first STT and the eyes open during the second test performed 30 min later. The mean value of the STTs performed on open eye was significantly less than the STT performed on closed eye on both days of examination.
This study showed a small but statistically significant difference between STT values obtained with open versus closed eyes in clinically normal horses.
施密特泪液试验（STT）在人类和兽医眼科中都被广泛应用。已经开发出两种类型的施密特泪液试验：施密特泪液试验I（STT I）和施密特泪液试验II（SST II）。施密特泪液试验I测量基础泪液分泌和反射性泪液分泌，是使用最广泛的施密特泪液试验。然而，几个因素会影响施密特泪液试验的结果，比如进行测试的人员以及试纸条在结膜囊内的放置位置。本研究的目的是测量临床正常马匹睁眼和闭眼时的基础泪液分泌和反射性泪液分泌（施密特泪液试验I）。
纳入了40匹无任何眼部疾病的临床健康马匹。在第1天，首先对所有马匹进行睁眼状态下的施密特泪液试验I，30分钟后进行闭眼状态下的施密特泪液试验I。在第2天，所有马匹在第一次施密特泪液试验时闭眼，30分钟后进行的第二次试验时睁眼。在检查的两天中，睁眼状态下进行的施密特泪液试验的平均值均显著低于闭眼状态下进行的施密特泪液试验。
本研究表明，临床正常马匹睁眼和闭眼时获得的施密特泪液试验值之间存在微小但具有统计学意义的差异。
