The Comparative Ocular Pathology Laboratory of Wisconsin (COPLOW) was established at the School of Veterinary Medicine of Wisconsin in 1983 as a mail-in ocular pathology laboratory servicing veterinary ophthalmologists. The service has grown yearly and now has almost 85,000 specimens. Almost 80,000 of these are dog, cat, or horse specimens submitted by ophthalmologists. The remaining 5,000 are specimens of every kind of eye one can imagine and they are submitted by zoos, aquariums, biologists, and anatomists Dr. Richard Dubielzig founded the lab and was the directory until 2014, when he retired. Dr. Leandro Teixeira then became the director. Currently there are 4 full-time board certified veterinary pathologist who specialize in eyes plus Dr. Dubielzig who remains an volunteer. The main scientific mission of the COPLOW is to study the natural history of spontaneous eye diseases of domestic animals, however we have published widely on comparative anatomy, and on case reports of diverse species.

Founding director of COPLOW, now serves as a volunteer consultant will provide an overview of the history of the collection, the scope and breadth of the collections, information on how the collection is preserved and utilized for scientific and medical research.

Richard Dubielzig graduated from Veterinary School in the class of 1972 at the University of Minnesota. After two years of small animal practice in New York state he began a pathology residency at the University of Pennsylvania in 1974 leading to board certification in 1977. Dr Dubielzig stayed at the University of Pennsylvania as a faculty member in anatomic pathology. During his residency he first became interested in ocular pathology and he was mentored in ophthalmology by Gustavo Aquirre. In 1983 Dr Dubielzig returned to his home town of Madison Wisconsin where he was the charter faculty member of the new Pathobiological Sciences. He retired (July 2014) and is an emeritus Professor of Pathology.

Dr Dubielzig founded COPLOW, a large mail-in ocular pathology service, and has authored many original articles describing the morphologic changes in the spontaneous diseases of the eye in animals. The archived collection of the Comparative Ocular Pathology Lab of Wisconsin (COPLOW) is available as a teaching or research resource. Dr. Dubielzig continues to work with the COPLOW images and he helps to maintain the database in a form that enhances the ability to search.