Additional file 1 of Infectious keratoconjunctivitis in European bison (Bison bonasus) in Poland: risk factors, epidemiology and anatomopathological changes with analysis of potential role of Thelazia nematodes in the disease development

Additional file 1. Morphometric measurements of corneal layers. Morphometric measurements of the height of anterior corneal epithelium, Bowman's membrane, substantia propria, Descemet's membrane, and number of cells in the anterior epithelium and comparison of measurements between groups of animals showing different severity of changes.