Fig. 2
From: Pigmentary keratitis in pugs in the United Kingdom: prevalence and associated features

Measurement of unstretched palpebral fissure width with a blunt-ended Jameson caliper
From: Pigmentary keratitis in pugs in the United Kingdom: prevalence and associated features
Measurement of unstretched palpebral fissure width with a blunt-ended Jameson caliper