Company Description. Vision Care For Animals (VCFA) is a veterinary ophthalmology referral practice located in Palo Alto, California. We specialize in the medical and surgical treatment of animal eye diseases and injuries. Our team, led by Dr. Patrick McCallum, an ACVO board-certified ophthalmologist, has extensive expertise in the treatment of various eye conditions. We collaborate with primary care veterinarians to provide top-quality care for ...