Staff of Animal Eye Specialists


The knowledgable staff of Animal Eye Specialists is here to help your pet and you.


Dennis V. Hacker, D.V.M. with Snowy Martin

Diplomate, American College of Veterinary Ophthalmologists

Ralph Gauna, Veterinary Assistant

Nancy Williams, Veterinary Assistant


Dr. Dennis Hacker

Dr. Dennis Hacker graduated from the University of Missouri-Columbia, College of Veterinary Medicine, in 1978. He practiced in small animal veterinary practices in Illinois and Virginia from 1978 to 1983. During this time, he increased his understanding of systemic diseases of veterinary patients. In 1983, Dr. Hacker began an intensive 3 year residency in veterinary ophthalmology at the University of California-Davis. This program was comparable to that performed by a physician in a human ophthalmology residency. In 1986, Dr. Hacker was extensively tested by the American College of Veterinary Ophthalmologists (A.C.V.O.) and successfully passed his board certification examination. Dr. Hacker is one of only 180 ophthalmologists certified by the A.C.V.O. in the world. Members of this elite veterinary specialty board are located throughout major metropolitan areas in the United States, Canada, Switzerland, Norway and Australia. Dr. Hacker is an Associate Clinical Professor in the Department of Veterinary Anesthesiology and Surgery at the University of California-Davis. Dr. Hacker¹s expertise is in diagnosis and surgery of the eye including microsurgery and cataract surgery. Dr. Hacker has written over 20 publications. He has given over 100 lectures to Veterinary Associations throughout the United States and at U. C.-Davis. He has reported on new and innovative surgical techniques to his colleagues in the A.C.V.O. He frequently lectures at the University of California-Davis. Veterinarians from the United States, Japan and Europe, as well as veterinary students from throughout the United States, visit this practice to learn new techniques and update their skills in treatment of ocular disease. For a list of papers authored or co-authored by Dr. Hacker, click here: For a list of lectures given by Dr. Hacker, click here:


Ralph Gauna

Ralph is a very personable employee. Whilst living in the Philippines, Ralph was a part-time veterinary student and a kennel owner. Ralph has a great experience with small animals and is rapidly learning the intricacies of veterinary ophthalmology.


Nancy Williams

Nancy has almost 18 years of experience in Veterinary Medicine. She is our most recent employee. Please welcome her on your next visit!



Dr. Hacker feels exceptionally lucky to be working with these wonderful, talented and people who in turn enjoy working with pets and their care-givers.


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