You can download Histologic Basis of Ocular Disease in Animals by Bruce Grahn, Robert Peiffer and Brian Wilcock free in pdf format.
Histologic Basis of Ocular Disease in Animals is a comprehensive reference covering pathology of the eye in a spectrum of animal species, including domestic animals, fish, birds, and laboratory animals. Offers a comprehensive resource on diseases and conditions of the eye and orbit in a wide range of species. Covers domestic animals, fish, birds, and laboratory animals. Presents more than 1200 high-quality images carefully selected to illustrate the ocular conditions covered. Emphasizes unique pathological responses where necessary