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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.

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in the news

Corneal Cross-Linking Treatment Remains Generally Stable 10-years Post Treatment

October 11, 2021

Epi-off corneal collagen cross-linking (CXL) treatment treats progressive keratoconus and ectasia that develops after refractive surgery. The procedure received FDA approval in 2016. Dr. Greenstein and his colleagues conducted a study to determine how well the procedure faired over the years. The study concluded that the treatment appears to remain stable for the majority of […]

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Dr. Greenstein lectures for the International Keratoconus Academy

September 14, 2021

On. August 18, 2021, Dr. Greenstein lectured to over 500 doctors on Corneal Inlays: “Past, Present, Future”

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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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