Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
The decision on the part of an owner to have a pet dog permanently put to sleep when enucleation of the eye is necessary is not uncommon to the small animal practitioner. Many people feel that such an animal, by its disfigurement, would provoke more pity than pleasure by its company. To aid in overcoming this situation, and provide a better cosmetic effect where enucleation is necessary, the development of a practical prosthesis, or artificial eye, was undertaken.
Simpson, H. D.
"Plastic Prosthesis for the Canine Eye,"
Iowa State University Veterinarian: Vol. 17
, Article 3.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol17/iss1/3