Dr. Sergiu Marcus, MD

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Get to know Ophthalmologist Dr. Sergiu Marcus, who serves patients throughout the State of New York.

Dr. Marcus is a highly-trained and experienced ophthalmologist in the medical and surgical management of vitreoretinal disorders of the eye. He is a part of the team at SightMD. 

SightMD offers world-class comprehensive ophthalmologic treatment and surgery at several locations across Long Island, Westchester, and New York. Utilizing the latest, state-of-the-art technology to deliver life-changing results, the mission of the practice is to provide an unparalleled care experience for patients with 7-days-a-week access to world-class quality eye care in the convenience of their local neighborhoods, delivered by a dedicated, caring, and talented healthcare team.

In addition to serving as an Assistant Clinical Professor of Ophthalmology at the Icahn School of Medicine at Mount Sinai, Dr. Marcus is an attending in ophthalmology on staff at Mount Sinai Hospital, Good Samaritan Hospital, Southside Hospital, Suffolk Surgery Center, and the Long Island Ambulatory Surgery Center.

With a passion for his field and an unwavering commitment to his specialty, the doctor is board-certified in ophthalmology by the American Board of Ophthalmology, whose mission is to serve the public by improving the quality of ophthalmic practice through a process of certification and Maintenance of Certification that fosters excellence and encourages continual learning. 

Academically, Dr. Marcus earned his medical degree from NewYork-Presbyterian Weill Cornell Medical Center. He then went on to complete his residencies in internal medicine and ophthalmology at The Mount Sinai Hospital, followed by his fellowship in retinal diseases at Beth Israel Medical Center. He also completed an additional fellowship in retinal diseases at Wilmer Eye Institute. 

In order to stay up to date in his field, he remains a member of several professional organizations, including the Association for Research in Vision and Ophthalmology, the American Medical Association, the New York Ophthalmological Society, the Wilmer Residents Association, and the American Academy of Ophthalmology.

Ophthalmology is a branch of medicine and surgery, which deals with the diagnosis and treatment of eye disorders. Ophthalmologists are experts in the diseases, functions, and anatomy of the eye. They may provide routine care such as vision testing, as well as prescribe and fit eyeglasses or contact lenses. However, ophthalmologists are also surgeons. They repair traumatic injuries to the eye and perform cataract, glaucoma, and corneal surgery.

In addition to English, Dr. Marcu speaks French, Spanish, Romanian, and Italian.

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