Dr. Giovanni Campagna

Dr. James C. Liu is a glaucoma specialist who helps adults protect and preserve vision with thoughtful, step-wise care. He sees patients for the full spectrum of glaucoma, from early disease found on screening to advanced cases that may require surgery. Dr. Liu offers medical therapy, laser options, and surgical solutions, and he takes time to explain each choice so patients can decide what fits their goals and lifestyle. He also performs cataract surgery, including cases in eyes with glaucoma, and provides comprehensive eye care. His clinical interests include minimally invasive glaucoma surgery and complex glaucoma procedures. In his research and quality-improvement work, Dr. Liu studies better ways to screen for glaucoma and optimize surgical practice patterns. He completed glaucoma fellowship training after ophthalmology residency and an additional fellowship in ophthalmic trauma, and he brings that broad surgical experience to the exam room and operating room. Patients appreciate his calm communication style and focus on long-term, durable results.

Dr. Abhinav Golla, MD, MPH is a fellowship-trained glaucoma specialist who cares for patients with glaucoma and cataracts at every stage. He offers the full spectrum of surgical options, including trabeculectomy, tube shunts, Xen gel stent, GATT, endoscopic cyclophotocoagulation (ECP), and the latest minimally invasive glaucoma surgery (MIGS) techniques. He also performs modern cataract surgery and can incorporate advanced technology lenses to address presbyopia and astigmatism when appropriate. Dr. Golla is passionate about improving glaucoma care through safer procedures, refined medical management, and earlier detection using advanced imaging and software. In visits, he focuses on listening to each person’s day-to-day experience—fears, goals, and symptoms—to tailor a plan that fits their life and comfort level. Patients appreciate his clear explanations, collaborative decision-making, and steady follow-up aimed at protecting sight over the long term.

Dr. Robert Null is a board-certified ophthalmologist with fellowship training in glaucoma. He helps patients protect and preserve vision through comprehensive glaucoma evaluation and long-term management, and he also performs cataract surgery. His approach emphasizes early detection, individualized treatment planning, and clear guidance on next steps. After earning dual undergraduate degrees at the University of Iowa, Dr. Null completed medical school at the University of Iowa Carver College of Medicine. He pursued residency training including a transitional residency at Unity Point Health and ophthalmology residency at the University of Kansas Medical Center, where he served as Chief Resident. Dr. Null completed a glaucoma fellowship at the University of Pittsburgh Medical Center with a focus on complex anterior segment surgery. He stays engaged in ophthalmic education and regularly shares research at professional meetings, bringing current, evidence-based care to the patients he serves.