Samuel Gelnick, MD — Retinal Surgeon in Long Island and New York City, NY

Dr. Samuel Gelnick is a board-certified ophthalmologist and fellowship-trained retina specialist and retinal surgeon providing advanced medical and surgical care for diseases of the retina and vitreous. He sees patients across SightMD locations in Rockville Centre, Hewlett, Brooklyn, and Flushing, serving both Long Island and the greater New York City region.

Dr. Gelnick specializes in the diagnosis and treatment of complex retinal conditions, including macular degeneration, diabetic retinopathy, retinal detachment, retinal tears, macular holes, epiretinal membranes, and retinal vein occlusions. In addition to his expertise in retina care, he also performs cataract surgery, offering patients comprehensive ophthalmic care under one roof.

With advanced fellowship training in medical and surgical retina, Dr. Gelnick provides highly specialized care for sight-threatening retinal diseases using the latest diagnostic imaging and treatment technologies. His approach emphasizes early detection, precision treatment, and long-term preservation of vision.

Dr. Gelnick earned his Bachelor of Arts in Psychology from Yeshiva University before receiving his Doctor of Medicine from New York Medical College. He completed his ophthalmology residency at Northwell Health, where he served as Chief Resident, and went on to complete a fellowship in vitreoretinal surgery at SUNY Downstate Health Sciences Center / Kings County Hospital, where he was recognized as Departmental Attending of the Year.

He is an active member of the American Academy of Ophthalmology (AAO) and the American Society of Retina Specialists (ASRS). Throughout his career, Dr. Gelnick has been committed to delivering compassionate, patient-centered care and ensuring that each patient fully understands their diagnosis and treatment options.

Practicing across Rockville Centre, Hewlett, Brooklyn, and Flushing, Dr. Gelnick plays a key role in providing advanced retina care throughout Nassau County, Suffolk County, and New York City.

Beyond the clinic, Dr. Gelnick believes strongly in being available for his community, whether it’s providing care during emergencies or supporting individuals outside of office hours. He considers this commitment a vital part of being not just a physician, but a neighbor and advocate.

A fun fact about Dr. Gelnick: His favorite way to unwind is spending time with his family—whether that’s exploring the outdoors, enjoying a shared meal, or simply being together.