Fig. 6From: Pigmentary keratitis in pugs in the United Kingdom: prevalence and associated featuresAssessment of grey/white corneal lesions and swirls. The swirl was allotted points as though it represented corneal pigmentation; one point per clock hour plus an additional two points for encroaching upon the visual axis. Laterally, a limbal brush border affects two corneal clock hours (2 points). Total = 5 pointsBack to article page