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Dr. Greenstein was first rate from start to finish! My vision was -425 in my right and -475 in my left before my Lasik procedure. By the next morning my vision was nearly 20-20 and 36 hours after the procedure my left eye was 20-15 and my right was 20-12.5. Very very happy!


I want to give a huge shoutout to my amazing eye surgeon Dr Greenstein at the Cornea and Laser Eye Institute in Teaneck, NJ.Ive been wearing glasses and/or contacts since I was in the third grade. I was legally blind and nearsighted with astigmatism in both eyes. I was also losing my vision for reading. Well, after having surgery last month I am now 20/12.5 in one eye and 20/16 in the other which is better than perfect and no astigmatism! Its amazing! I can see perfectly for reading as well. I cant say enough wonderful things about this doctor, his staff and the entire experience.I highly recommend Dr Greenstein if you are thinking about laser eye surgery.


The staff is incredible. Dr. Greenstein has an awesome bedside manner and made me feel comfortable during the initial, pre-op, the procedure and every time I go in for a follow up. He takes to the time to make sure I understand what is happening and what the next steps are. Jenn is amazing, she is friendly, answers any questions I have and just kept me feeling comfortable the entire time. There is so much more I can say about the staff and the PRK procedure. I have recommended them to friends that are considering vision correction as well.


I had CTAK and CXL (epi-on) done on my Keratoconic right eye from The Cornea & Laser Eye Institute. I'm very impressed with the amount of visual acuity gained from this combination procedure. Unlike Intacs, CTAK did not add any additional halo, glare, streaks, after post operation. In fact, all of those immediately reduced quite a bit right after the procedure. Once my eye heals and stabilizes from CXL, I'll be going in for further treatment with tPRK. I have high hopes that my vision will improve even further. CTAK is relatively a new procedure to treat Keratoconus. For those with moderate to advanced Keratoconus, should look into being treated via CTAK.


I put off lasik for more than 20 years because of fear. I was recommended The Cornea & Laser Eye Institute by my boss, who had his procedure there years before and I know how much research he does on everything so 1/2 the decision was made for me already :) The staff were all very nice, and Dr. Greenstein was patient with my questions and explained all the possibilities and steps. I was able to see quite well the next day and 3 months out my vision is perfect. I have recommended them to two of my friends already!

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Cornea & Laser Eye Institute
84 4.9 - star reviews


Picture of man with Doctor

Thank you so much Doc! When I first came to you I was 20/50 now I'm 20/10. I'm ready to have a great year!

Randy Foye
Pro Athlete, Utah Jazz #8
Female Boxer

My experience at The Cornea and Laser Eye Institute has been amazing. All of the staff have been helpful and courteous...

Phd Student, MMA fighter
Man with Doctor

Dr. Hersh and his staff were excellent. I was comfortable from the time I walked in until the time I left after the procedure.

Luke Petitgout
Pro Athlete, New York Giants Football