Dr. Meera Sivalingam

Dr. Kaitlyn ("Katie") Brettin is a glaucoma and cataract surgeon committed to delivering thoughtful, patient-centered care. She combines precise surgical skills with clear communication so people understand their options—from medical and laser therapies for glaucoma to advanced lens choices for cataract surgery. Her clinical interests include modern, minimally invasive approaches that can lower eye pressure while preserving vision and speeding recovery. Dr. Brettin earned her medical degree from Harvard Medical School and completed ophthalmology residency at Wills Eye Hospital in Philadelphia. She is the 2025–26 Glaucoma Fellow at Minnesota Eye Consultants, where she focuses on complex and combined procedures and participates in ongoing clinical research on MIGS. Before medical school, she graduated summa cum laude from Tufts University with dual degrees in Biology and Psychology. Patients appreciate her calm bedside manner, careful explanations, and a care plan tailored to their daily life and long-term goals.

Dr. Tomas E. Meijome is a comprehensive ophthalmologist committed to delivering high-quality, equitable eye care. He provides full-scope medical and surgical services with a special interest in global health and education. During a global ophthalmology fellowship at Wills Eye Hospital, he cared for patients locally and internationally and taught trainees in a variety of practice settings. Patients value his clear explanations, collaborative decision-making, and focus on practical results that fit their daily lives. Dr. Meijome completed ophthalmology residency at the University of Michigan Kellogg Eye Center after medical school at the Perelman School of Medicine at the University of Pennsylvania. His approach blends academic rigor with genuine empathy, aiming to restore and protect vision through evidence-based, patient-centered care.

Dr. Erin O’Neil is an attending pediatric ophthalmologist at Children’s Hospital of Philadelphia. She cares for children with a wide range of eye and vision concerns, with special training in retinal degeneration, ophthalmic genetics, and medical retina. Families appreciate her thoughtful explanations, practical guidance, and team-based approach to helping children see and function their best at home and school. Dr. O’Neil earned her medical degree at the Perelman School of Medicine at the University of Pennsylvania and completed ophthalmology residency at the Scheie Eye Institute, followed by a fellowship in Retinal Degeneration, Ophthalmic Genetics, and Medical Retina at Scheie. She also completed a Certificate in Medical Education. In the clinic, she collaborates closely with genetic counselors, pediatric specialists, and low-vision resources across CHOP to personalize each child’s care plan. Whether a child needs answers about a suspected inherited retinal disease or support for common pediatric conditions, Dr. O’Neil strives to make every visit comfortable, informative, and family-centered.