Lawrence Zweibel, M.D.

Lawrence Zweibel, M.D., F.A.C.S.Castle Connolly Top Docs

Lawrence Zweibel, M.D., F.A.C.S. is a senior partner at SightMD and the director of ophthalmology at St. Catherine of Sienna Hospital. He sees patients at the Smithtown office.

Lawrence Zweibel, M.D., F.A.C.S. serves as Director of Ophthalmology at St. Catherine of Sienna Hospital in Smithtown. Dr. Zweibel has been a partner of SightMD for the past 25 years. He is a fellow of the American College of Surgeons and a board certified ophthalmologist.

Dr. Lawrence Zweibel earned his Bachelor of Arts degree from New York University before going on to receive his medical degree from Albany Medical College. He completed his internship at St. Vincent’s Hospital in New York City and served as chief resident in Ophthalmology at the French and Polyclinic Medical center, also in New York City. Always interested in teaching, he instructed eye doctors in training both in New York and at Stony Brook University where he served as a clinical instructor for 20 years. He is the past Director of Ophthalmology at St. Catherine of Sienna Hospital in Smithtown, Long Island.


Meet Dr. Lawrence Zweibel


Dr. Zweibel joined Dr. Sidney Martin in Smithtown in 1976 and is now a senior partner at SightMD. He is a member of the Medical Society of the State of New York, the Suffolk County Medical Society, and the New York State Ophthalmologic Society. He is certified by the American Board of Ophthalmology and is a fellow of the American College Surgeons and the American Academy of Ophthalmology.

Recognized by his peers, residents in training, and patients, Dr. Zweibel has been consistently named in “Top Doctors in the New York Metro area” as published by Castle Connolly Medical Ltd. since 1998. He is also a Vitals and Healthgrades recognized eye doctor.

Dr. Zweibel states he chose Ophthalmology as a specialty since he felt there was so much that can be done in this field to improve ones quality of life. Preserving vision, as with patients with glaucoma or diabetes is of paramount importance. But restoring vision as with cataract surgery is also quite rewarding. However, he felt that just restoring vision was not enough as most people in the 1970’s had to rely on thick cataract glasses in order to see which were known for distortion and magnification of objects by 20%. For this reason he became the first person in Suffolk County to replace the cataract with an intraocular lens at the time of surgery.

Improving the quality of vision in people with otherwise healthy eyes has been another passion. It is for this reason that Dr. Zweibel became involved in radial keratotomy in the 1980’s and more recently LASIK and PRK when they gained approval in the United States in the 1990’s.

When not in the office Dr. Zweibel spends his time with his family running, swimming, skiing, and reading. He is a private pilot with commercial, multiengine, and instrument ratings.

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