Dr. Colin McInnis

Dr. Jefferson Berryman is a board-certified ophthalmologist and glaucoma specialist who provides care in western Montana. He offers the full spectrum of medical and surgical glaucoma management along with cataract and complex anterior segment surgery. Patients value his thorough evaluations and clear, practical explanations of risks, benefits, and alternatives so they can choose the approach that best fits their goals and lifestyle. Dr. Berryman graduated with distinction from the University of Oklahoma College of Medicine, completed ophthalmology residency at the University of California, Davis, and pursued advanced fellowship training in glaucoma, cataract, and complex anterior segment surgery with Minnesota Eye Consultants. He enjoys community outreach and international service and brings that same commitment to equitable, high-quality care to his daily practice.

Dr. Brock Alonzo is a comprehensive ophthalmologist with focused expertise in glaucoma and cataract care. He earned his medical degree with highest distinction from Oregon Health & Science University, completed an internship at Scripps Mercy Hospital in San Diego, and returned to the Casey Eye Institute for ophthalmology residency. He then completed advanced fellowship training in glaucoma, cataract, and intraocular lens surgery at the Moran Eye Center in Salt Lake City. Dr. Alonzo offers a full spectrum of glaucoma therapies—from medications and SLT laser to modern MIGS procedures and traditional surgeries—along with cataract surgery using advanced IOL technology when appropriate. He enjoys partnering with patients to preserve sight through personalized plans that match their goals and lifestyles. Outside of clinical practice, he stays active in professional societies and enjoys time outdoors with his family in the Rockies.