ABSTRACT: This study analyzed clinical and cyto-histomorphological parameters of the ocular surface Shih Tzu dogs, non-carriers carriers quantitative keratoconjunctivitis sicca (KCS) at different stages. Thirty-five eyes from 23 male female dogs between two eight years were evaluated in four groups: control group (CG - without KCS), mild KCS (KCS1), moderate (KCS2), severe (KCS3). Most variable...