Dr. Kirschner received her veterinary degree from Cornell University in 1983. She did her internship at the Animal Medical Center in New York City, and after a year in general practice in upstate New York, moved to Ames, Iowa for her ophthalmology residency training. She became a board certified ophthalmologist in 1989. After doing a fellowship in ophthalmology at the Medical College of Wisconsin in Milwaukee, Dr. Kirschner joined the Animal Medical Center, as staff ophthalmologist, where she practiced ophthalmology and taught interns and foreign veterinarians. She returned home to Portland in 1993, and practiced in two multi-doctor specialty clinics in the Portland area for nine years. In 2004 Dr. Kirschner opened her own clinic, The Animal Eye Doctor, in Beaverton, Oregon. In November 2018, Dr. Kirschner partnered with Pathway Vet Alliance and joined the Ophthalmology Specialty group with Eye Care for Animals.