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
A 3 1/2-year-old cocker spaniel female was admitted to Stange Memorial Clinic on August 13, 1955. The dog was suffering from blindness due to 25 bilateral cataracts. It was being admitted for the purpose of surgery.
"Bilateral Cateracts in a Cocker Spaniel,"
Iowa State University Veterinarian: Vol. 18
, Article 7.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol18/iss1/7