Dr. Alyssa Bonnell

Dr. Paul Chamberlain is a board-certified, fellowship-trained ophthalmologist who specializes in the medical, laser, and surgical management of glaucoma as well as routine and complex cataract surgery. He provides individualized care plans that may include eyedrops, laser procedures, MIGS, or traditional surgeries, always with a clear discussion of risks, benefits, and expected recovery. Dr. Chamberlain earned his MD at Baylor College of Medicine and completed ophthalmology residency there after an internship in Spokane. He then pursued fellowship training in Glaucoma and Complex Anterior Segment Disease at the Moran Eye Center in Utah. He also holds an MPH from the University of Texas Health Science Center. Patients appreciate his steady communication style, attention to safety, and commitment to using modern techniques to protect vision and quality of life.

Dr. S. Tammy Hsu is a vitreoretinal surgeon who cares for both adult and pediatric patients with diseases of the retina and vitreous. She completed medical school, residency, and a vitreoretinal surgery fellowship at the Duke Eye Center, where she trained in the latest surgical techniques and technologies and developed a strong foundation in compassionate, detail-oriented care. Before medicine, she studied Biochemistry at Rice University, reflecting an early interest in innovation and multidisciplinary collaboration. Dr. Hsu diagnoses and treats age-related macular degeneration, diabetic retinopathy, retinal detachments, epiretinal membranes, macular holes, retinal vein occlusions, dislocated intraocular lenses, flashes and floaters, and selected pediatric retinal diseases such as Stickler syndrome and Coats disease. She pairs personalized, evidence-based treatment with clear communication so patients understand their options and feel confident at every step. Her clinical work is complemented by ongoing research and presentations at national and international meetings.

Dr. Amy Yuan is a board-certified ophthalmologist and retina specialist who cares for adults with the full spectrum of medical and surgical retinal disease. Born in Shanghai and raised in Sydney, Australia, she later moved to the United States for college, graduating magna cum laude from Yale University with a degree in biomedical engineering before earning her medical degree at the Yale School of Medicine. She completed an internal medicine internship at Massachusetts General Hospital, an ophthalmology residency at Harvard Medical School / Massachusetts Eye and Ear, and a vitreoretinal surgery fellowship at the University of Washington. At Pacific Northwest Retina, Dr. Yuan provides thoughtful, individualized care using the latest diagnostic testing, injection therapies, laser treatments, and retinal surgery to help preserve and restore vision. She has authored peer-reviewed publications on evolving techniques for secondary intraocular lens surgery and remains actively involved in research and clinical trials. Dr. Yuan also participates in global health initiatives and maintains a courtesy appointment as a clinical instructor at the University of Washington, where she helps educate residents and fellows. In her free time, she enjoys exploring the Pacific Northwest with her husband, traveling, and playing bridge.