McDonald Jessica E, Knollinger Amy M, Dees Darryl D, MacLaren Nicole E
Eye Care for Animals, 1021 E. 3300 S., Salt Lake City, UT, 84106, USA.
Eye Care for Animals, 12419 Metric Blvd, Austin, TX, 78758, USA.
Vet Ophthalmol. 2018 Jan;21(1):101-103. doi: 10.1111/vop.12466. Epub 2017 Mar 14.
To determine the normal reference range for Schirmer tear test-1 (STT-1) values in eyes of healthy alpacas (Vicugña pacos).
Complete ophthalmic examinations were performed on forty healthy alpacas (80 eyes). STT-1 values were obtained in both eyes of all alpacas using a commercial STT strip of a single lot number. Data were analyzed, using a doubly repeated measures ANOVA design, Student's paired t-test, and Pearson correlation test, with P ≤ 0.05 considered significant.
The STT-1 values ± standard deviation (SD) were 20.80 ± 4.01 mm/min OD, 20.00 ± 4.13 mm/min OS, and 20.88 ± 4.04 mm/min OU (range 15.50-30.50 mm/min). No significant differences in STT-1 were found between OD and OS. STT-1 was not significantly affected by breed. Schirmer tear test-1 values were significantly increased by 3.45 mm/min for every 10 year increase in age.
This study provides a reference range of STT-1 in the healthy alpaca which can assist veterinarians in diagnosing potential keratoconjunctivitis sicca, tear film abnormalities, as well as ocular surface diseases in alpacas.
确定健康羊驼（小羊驼）眼睛的泪液分泌试验-1（STT-1）值的正常参考范围。
对40只健康羊驼（80只眼）进行全面的眼科检查。使用同一批号的商用STT试纸条获取所有羊驼双眼的STT-1值。采用双重复测量方差分析设计、学生配对t检验和Pearson相关检验对数据进行分析，P≤0.05认为具有统计学意义。
右眼（OD）的STT-1值±标准差（SD）为20.80±4.01mm/分钟，左眼（OS）为20.00±4.13mm/分钟，双眼（OU）为20.88±4.04mm/分钟（范围15.50 - 30.50mm/分钟）。OD和OS之间的STT-1值无显著差异。STT-1不受品种的显著影响。年龄每增加10岁，Schirmer泪液分泌试验-1值显著增加3.45mm/分钟。
本研究提供了健康羊驼STT-1的参考范围，可帮助兽医诊断羊驼潜在的干角结膜炎、泪膜异常以及眼表疾病。
