A total of 83 corneas from 55 dogs of different breeds, sex and age were selected for the study. Signalment, anamnesis, nature of discharge and duration of illness was collected from all the animals. The progression of pigmentation was assessed by dividing the cornea in to four quadrants. Pigmentation grading, extent of pigmentation and mean pigment density were calculated by dividing the cornea in to 24 sectors. Schirmer tear test (STT), fluorescein dye test (FDT), tonometry, and slitlampbiomicroscopy and corneal impression cytology were done. Among the 55 animals, 51 dogs were Chineese Pug (92.7%) and the mean age was 33.13+3.12 months. Among 55 animals, 28 were females (50.9%) and left cornea was affected in 44 animals (53.01 %). The mean duration of the disease as noticed by the owner was 07.21 ±0.65 months. Among 83 corneas, 40 (35%) showed pigmentation in all the sectors. 29 animals (53%) were affected with keratoconjunctivitis sicca (KCS) followed by 13 animals (24%) affected with entropion. The mean value of random blood sugar was 107.84+0.99 and the mean intra ocular pressure in the animals under the study was 40.64 + 2.38. The mean value of pigmentation grading, extent of pigmentation and mean pigment density was 32.59+2.27, 15.67+0.83and 1.37+ 0.07respectively. The mean value of Schirmer tears test was 10.31+0.58 and under high power microscopy, Leishman's stained corneal impression cytology revealed infiltration of neutrophils in all the slides. It was concluded that Chineese pugs under the age of three years and females and left eye was mostly affected. All the animals with pigmentation was having keratoconjunctivitis sicca.
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