In order to evaluated the Schirmer tear test 120 dogs (51 males and 69 females) of different breeds were observed. Four tipes of filter paper were used and prepared in strips of 4cm x 0,5cm. The papers were moisted into the conjuntival sac for one minute, then removed and the umidified segment were measured with a milimetrical rule. The results were analysed by Tukey test. The Melitta filter paper was more effective, and the determined parameters were: 1,4 +/- 1,5mm - KCS; 6,7 +/- 1,0mm - tear hyposecretion; 18,0 +/- 3,4mm -normal secretion and 29,9 +/- 6,7mm - epiphora.
filter paper; tear; Schirmer test
