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At the Cornea & Laser Eye Institute, we value the best education and training, we have unsurpassed depth and breadth of experience, we utilize the most advanced technology, and we have a focused dedication to the field.

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Welcome to The Cornea and Laser Eye Institute


We offer numerous vision correction options: Custom LASIK, Wavelight LASIK and LASEK, PRK, All-Laser LASIK with IntraLase™, INTACS™, KAMRA, intraocular lenses, and NearVision CK.
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LASIK And Vision

Treatments for keratoconus can include a corneal collagen crosslinking, Intacs, conductive keratoplasty, cornea transplant, and contact lenses, and new procedures currently being developed for the treatment of keratoconus.
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At the Cornea and Laser Eye Institute, we offer laser-assisted cataract surgery, the latest innovation in the technique.
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Lead by Dr. John D. Gelles, the contact lens division of the CLEI Center for Keratoconus has unparalleled experience in specialty contact lens fitting for keratoconus and other corneal diseases.
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Contact Lenses

We were amongst the first in the nation to perform laser-assisted corneal transplants. Corneal transplantation is suggested in a number of corneal disorders including advanced keratoconus, corneal swelling, scars, and dystrophies.
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BostonSight PROSE is a custom medical treatment model that saves sight in individuals with ocular surface disease. During treatment, doctors customize prosthetic devices from gas-permeable polymers for each patient’s condition and unique eye shape.
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Dry eye, ocular surface & prose treatment

Our Expert Team

The Cornea and Laser Eye Institute - Hersh Vision Group is one of the premier LASIK laser vision correction practices in the United States, and its CLEI Center for Keratoconus is a nationally respected keratoconus and corneal disease subspecialty practice. At CLEI, Drs. Hersh, Greenstein, Gelles and our staff give our patients the four elements most important in choosing a LASIK and Cataract surgeon, Keratoconus and Cornea specialist, and contact lens expert - the best education and training, unsurpassed depth and breadth of experience, the most advanced technology, and focused dedication to the field... this is all we do.

Our Doctors:

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in the news

2022 Jets Vision Assessments

June 15, 2022

On Monday, June 13, 2022, Dr. Hersh, Dr. Greenstein and Dr. Gelles performed vision testing at the Jets training camp in preparation for the upcoming season. We have been team doctors for the New York Jets for over 15 years. J-E-T-S jets jets jets!

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Dr. Greenstein invited by Oculus to lecture on Keratoconus Treatment & Diagnostics

April 19, 2022

Steven Greenstein, M.D. was invited by Oculus to give a webinar on the Advanced Diagnostics and Treatment for Progressive Keratoconus. He discussed the latest research, a number of case examples and the best modern clinical practices for the diagnosis and treatment of progressive keratoconus. Please take the time to watch the webinar. Whether you are […]

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Your safety is our top priority

The Cornea and Laser Eye Institute maintains the highest standards to provide safe in-office care during the COVID-19 pandemic. To provide additional options, consultations are available via telemedicine for LASIK, Keratoconus, Cataract, and Contact Lens

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