About Us

About OCLI

OCLI & NYVG logo

We are excited to announce that NY Vision has joined OCLI Vision to have access to a larger network of providers and resources.

As our patients you are top priority, rest assured you will receive the same high-quality care that you are accustomed to. We thank you for trusting us with your eye care needs and look forward to serving the eye care needs of you and your family.

OCLI Vision is a world-renowned, multi-location ophthalmology practice offering eye care services. Our practitioners are some of the most respected physicians in the country, earning their reputations as esteemed innovators and complication-solvers.

Founded in 1997, OCLI Vision (www.ocli.net) is one of the leading ophthalmology practices in the United States. The practices of OCLI Vision offer eye care services at locations throughout Connecticut, New Jersey, New York, Pennsylvania and West Virginia. OCLI Vision is led by a large group of highly skilled ophthalmologists and optometrists in each major sub-specialty of eye care who provide comprehensive eye care services, including treatment for cataracts, corneal disease, glaucoma, retinal disease, oculoplastics, refractive surgery, and neuro-ophthalmology

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Why Choose NY Vision Group?

There are many reasons to choose our practice. We are a multi-specialty practice with premiere specialists, who are trained in different areas of the eyes. The entire staff at NY Vision Group is dedicated to helping patients achieve their vision goals and live healthier, happier lives. Whether you need Laser Vision Correction, a glaucoma screening, or a contact lens fitting, we will find the right vision solution for you. Below are just a few of the reasons to choose us.

Education and Training

Dr. Harry Koster is a board-certified ophthalmologist. He completed his ophthalmic residency training at New York Eye and Ear Infirmary, the nation’s oldest eye hospital, and specialized in refractive and corneal surgery there. Indeed, even before LASIK was FDA-approved in the U.S., he pursued a prestigious fellowship in refractive surgery in Hotel-Dieu, the premier eye hospital in France. Following his fellowship in Paris, Dr. Koster completed another refractive and corneal fellowship at Harvard Medical School where he continued to investigate surgical therapies for refractive errors. He has continued to be at the forefront of exploring refractive and corneal techniques since then and is one of the best trained corneal and refractive surgeons in New York City.

Similarly, Dr. Cynthia Hsu graduated from Johns Hopkins before receiving her medical degree at that university’s renowned School of Medicine.  Dr. Hsu remained at the prestigious Wilmer Eye Institue at Johns Hopkins for her residency followed by an internship at New York Eye and Ear Infirmary.

Dr. Alexander Barash graduated from Cornell University, followed by medical school at the Mount Sinai School of Medicine, where he was awarded a prestigious clinical research fellowship to study corneal stem cells’ ability to cure blindness. He went on to study ophthalmology at Stony Brook, Long Island, before his vitreoretinal fellowship at New York Eye & Eye Infirmary.

All of the doctors at NY Vision Group must be highly trained in cornea and refractive eye care as well as general eye health. Many of the optometrists who work in the practice are graduates of the SUNY College of Optometry, where Dr. Koster is himself an instructor, ensuring that his optometrists are well trained.


Our doctors are highly experienced. For example, Dr. Koster specializes in cornea and refractive surgeries. He has been in practice for over 20 years and has performed over 10,000 laser vision procedures. Additionally, for lens procedures involving multifocal lens technology, few surgeons have performed close to the number of multifocal related procedures that he has. His proficiency is not only geared toward superior short-term results, but his meticulous surgical techniques are also aimed at avoiding potential longer-term complications such as capsular lens opacification (secondary cataracts) and retinal problems.

Additionally, our retinal specialists have a wealth of experience in dealing with retinal issues. Doctor Angioletti has been in practice for over 20 years.  He is a Senior Attending Surgeon at New York Eye and Ear Infirmary and has authored a textbook chapter on retinal surgery. Dr. Barash has been on multiple international surgical missions, including in Mongolia and Peru.  He has published articles in numerous medical journals. Our other doctors and specialists share similar experiences. These experiences, combined with our doctors’ education and training, make NY Vision Group a truly trusted institution.

Advanced Technology

NY Vision Group utilizes the latest technological advances to provide patients with the best available care, not only with respect to innovative surgical techniques and technologies but also with respect to state-of-the-art testing modalities for use during a patient’s regular office check-up.

For Laser Vision Correction procedures, NY Vision Group uses the Wavelight EX 500 laser, the most technologically advanced, FDA approved laser technology available in the United States. This technology includes the latest custom corneal treatments that incorporate an infrared eye-tracking system and “Wave-Front” diagnostics to track and treat the smallest of visual errors, high order aberrations. The Wavelight EX 500 laser is considered the safest, fastest and most accurate laser available. We offer this treatment in the comfort and convenience of NY Vision Group’s own LASIK center in Tribeca.

For cataract and multifocal procedures, our surgeons utilize the most up-to-date lens technology, such as the PanOptix or Vivity multifocal implants, or the astigmatic corrective PanOptix Toric lens, to help patients achieve a broad range of vision. Finally, for in-office diagnoses, NY Vision Group utilizes the latest imaging testing technologies available. For example, to screen for glaucoma, we use the scanning laser polarimetry (GDX), the optical coherence tomography (OCT III), and confocal scanning laser ophthalmoscopy (HRT II) to map the eye’s optic nerve and internal structures.

Reputable Affiliations

Dr. Koster is currently an assistant clinical professor at New York Eye and Ear Infirmary where he also performs cataract surgery. He is also the Surgeon Director of Cataract Surgery at the SUNY College of Optometry. He has been a member of the Medical Scientific Advisory Board of the New York Eye Bank for over ten years. In addition, Dr. Koster is also a diplomate of the American Board of Ophthalmology, a member of the Academy of Ophthalmology, and a fellow of the American Society of Cataract and Refractive Surgery. He has been selected as one of New York City’s Super Doctors for the last 5 years and chosen as a Castle Connolly Top Doctor for the past 2 years.

Similarly, Doctors Angioletti, Barash, and Hsu are all affiliated with New York Eye and Ear are members of the American Board of Ophthalmology and related prestigious professional organizations, such as the American Society of Cataract and Refractive Surgeons. Our optometrists are also members of their top professional organizations, such as the American Optometric Association. Our doctors have trained at top institutions, not only those listed above but also Johns Hopkins, Massachusetts Eye and Ear Infirmary/Harvard Medical School, Cornell, and New York University.

Patient Satisfaction

Dr. Harry Koster has been successfully performing corneal and refractive surgery for over 20 years. His patients express an extremely high rate of satisfaction and are our biggest source of new patient referrals.

At NY Vision Group we pride ourselves on putting the patient first. The entire staff at NY Vision Group is dedicated to providing the best possible eye care to our patients, helping them achieve the highest quality of vision available to them. We are committed to understanding each patient’s health concerns, lifestyle needs and vision goals in order that we can help each patient realize those goals and lead a healthier, more fulfilling lifestyle. We work hard to build and maintain patients’ trust in order to achieve these goals.

An important part of our mission is patient education. We want to ensure that each patient understands his or her particular eye condition, the treatment options available, and the potential outcomes, including both the benefits and the risks of any procedure. We also believe that educating patients about the ways in which they can help themselves achieve their vision goals (such as following pre-operative and post-operative instructions and generally living a healthier lifestyle) is a critical part of our mission. We strive to answer our patients’ questions in the office and to provide further resources (such as the Patient Education portion of our website) for patients before and after they leave the office. We truly believe that the better informed the patient is, the better the doctor-patient relationship is, and ultimately the better the outcomes and care will be.

“For the past 2 years have seen many doctors and each of them have not been able to diagnosis what was causing my loss of vision. It was hard getting by every day and being unable to see from either of my eyes. I came to see Dr. Koster for another opinion. After examining me and running different test, he then told me that the problem is not my eyes it has to do with my brain. He then sent me out to see a neuro-ophthalmologist. They discovered a tumor in my brain after performing an MRI. I then went to New York Presbyterian to have then tumor removed and since then I have gotten back my vision. Words can’t explain how grateful I am to Dr. Koster for giving me back my sight.”

-Lilowtie Singh

Our Locations


37 Murray Street
Lower Level
New York, NY 10007

Phone: 212-243-2300
Map of Our Tribeca Location

Richmond Hill

119-15 Atlantic Avenue
Richmond Hill, NY 11418

Phone: 718-805-0700
Map of Our Richmond Hill Location


279 Wyckoff Avenue
Brooklyn, NY 11237

Phone: 718-805-0700
Map of Our Brooklyn