Visser Hannah E, Diehl Kathryn A, Whitley R David, Myrna Kathern E
Department of Small Animal Medicine and Surgery, University of Georgia College of Veterinary Medicine, Athens, GA, USA.
Department of Small Animal Clinical Sciences, University of Florida, Gainsville, FL, USA.
Vet Ophthalmol. 2017 Nov;20(6):568-570. doi: 10.1111/vop.12419. Epub 2016 Aug 8.
To compare Schirmer tear test I (STTI) values collected in normal horses with and without an auriculopalpebral nerve block.
Schirmer tear test I values were measured in 20 clinically normal horses (38 eyes) with a median age of 12 years. The order of eyes tested was randomized. Within 24-48 h, at the same time of day, tear measurements were collected again after administration of an auriculopalpebral nerve block. Each block was performed a minimum of 5 min prior to each STT I. A repeated-measures model was used to analyze differences between STT I values in eyes with and without nerve blocks incorporating within horse correlation between eyes. The mixed-model included fixed factors of treatment and eye and a random intercept for each horse. An unstructured covariance structure was used.
On average, STT I values measured in eyes after auriculopalpebral nerve blocks were 0.55 mm/min greater than those without nerve blocks. This difference was not statistically significant (P = 0.5268).
There was no effect of auriculopalpebral nerve block on STT I values in normal horses.
比较在接受和未接受耳睑神经阻滞的正常马匹中收集的Schirmer I 试验（STTI）值。
对20匹临床正常的马匹（38只眼）进行Schirmer I 试验值测量，这些马匹的中位年龄为12岁。测试眼睛的顺序是随机的。在24 - 48小时内，在一天中的同一时间，在给予耳睑神经阻滞后再次收集泪液测量值。每次进行Schirmer I 试验前，每个阻滞至少进行5分钟。使用重复测量模型分析接受和未接受神经阻滞的眼睛的Schirmer I 试验值之间的差异，并纳入马匹双眼之间的相关性。混合模型包括治疗和眼睛的固定因素以及每匹马的随机截距。使用非结构化协方差结构。
平均而言，接受耳睑神经阻滞后测量的眼睛的Schirmer I 试验值比未接受神经阻滞的眼睛高0.55毫米/分钟。这种差异无统计学意义（P = 0.5268）。
耳睑神经阻滞对正常马匹的Schirmer I 试验值没有影响。
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