Abstract :
The current study was undertaken to establish reference values for Schirmer tear test (STT)
and intraocular pressure (IOP) in the Sanjabi sheep. Twenty apparently healthy Sanjabi
sheep with no evidence of ocular disease were used in this study. Tear production was measured
by STT by inserting standard sterile Schirmer tear test strip (Ophtechnics Inc., Carson
City, NV, USA, Lot number: STR061203) in the ventral conjunctival fornix for 1 min. IOP was
measured in both eyes with a Tono-Pen VetTM (Reichert, Inc. USA). Mean (SD) STT values
for all eyes (n = 40) were 18.52±2.55mm/min with a range of 13.5–22 mm/min. Comparison
of mean STT values between right (n = 20) and left eyes (n = 20) showed no differences
(P = 0.88). Mean (SD) IOP values by applanation tonometry were 9.37±2.45mmHg (range
6–14.5 mmHg). Comparison of mean IOP values between right (n = 20) and left eyes (n = 20)
showed no differences (P = 0.59). In conclusion, this study reports STT and IOP findings in
Sanjabi sheep, and provide means and ranges for IOP and STT.
