From: Results of the Schirmer tear test performed with open and closed eyes in clinically normal horses
Test day | Eye status and no. of measurements | Eye | P value | |
---|---|---|---|---|
Left | Right | |||
Day 1 | Open T0 (n = 40) | 21.5 ± 3.1 | 21.5 ± 3.3 | 1.0 |
Close T30 (n = 40) | 22.3 ± 3.0 | 21.9 ± 3.1 | 0.02 | |
P value | <0.001 | 0.027 | ||
Day 2 | Close T0 (n = 40) | 23.7 ± 2.8 | 23.7 ± 2.8 | 1.0 |
Open T30 (n = 40) | 23.0 ± 3.1 | 22.8 ± 2.9 | 0.3 | |
P value | 0.004 | <0.001 |