LASEK
Vision Correction without the risks of LASIK surgery
through the no-cut, no-flap procedure — LASEK.
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MEET OUR LASEK EXPERT

LASEK Quiz
Check if you are eligible for
the safest procedure
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TAKE THE QUIZ

LASEK
Safest Laser Vision Correction Procedure.
100% non-cutting, 0 flap complications.
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LEARN MORE

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Book Your Free
LASEK Consultation
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Because
Non-Cutting is the Safest™
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Achieve Your Ideal Vision at Park Avenue LASEK in New York, NY
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Our Mission
Park Avenue LASEK is dedicated to providing the safest version of laser vision correction, which is LASEK, a newer, safer form of LASIK that doesn’t involve cutting the cornea.
LASEK can safely treat most patients who don’t qualify for LASIK, including people with:
- Extreme prescriptions
- Thin corneas
- High/irregular astigmatism
- Night glare & halos
- Large pupills / night glare
Email Us
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Patient Testimonials
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Patient Testimonials
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Read More Reviews
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5
Santos S.
Looking forward to looking 20/20 thank you it’s painless procedure and it does work….
– Santos Salmeron
5
Fernando A.
Park Avenue Lasek is the only place around where you can have a refractive surgery or correction for your eyes without blade. It is a more advanced technique than Lasik. Dr. Chynn is probably the most experienced refractive surgeon in the US. He completed his BS in Biology from the…
– Fernando Adventius
5
Zack V.
staff very friendly taking time to explain all types of questions not rushing met the doctor who asked a few questions and said not to worry doing surgery in a week can’t wait. staff is very very very helpful big shout-out to Tarek and Tetyana….
– Zack Vasilets
5
Neema S.
Very friendly staff. Amazing doctor. Had a high prescription, 3 months post op happy with the results so far, vision getting better every day . Thank you….
– Neema Sherpa
5
Johnny C.
Have not gone through surgery yet. In regards to the pre-op, was a great experience. The staff was warm and knowledgeable….
– Johnny Chang
5
Mirella M.
I don’t even know where to start. It goes without saying that Dr. Chynn is literally the most experienced eye surgeon in NYC- the center of the world. He helped invent LASEK and then invented his own procedure, LASIK, that gave people who couldn’t have incision surgeries the ability to…
– Mirella Miville
5
Toshi Y.
Dr. Chynn was the best decision I’ve ever made. I went to almost every LASIK center in NYC, but none of them could treat me vision because I had both a high prescription AND thin cornea, so they all said it would be unsafe to get LASIK. One day, a…
– Toshi Yaku
5
Andrew L.
I had a great experience with Dr. Chynn at Park Avenue Lasek although I understand other people’s reviews. Some people might be turned off by Dr. Chynn’s personality and how he interacts with staff, but the guy is clearly brilliant as evidenced by his impressive resume (Dartmouth, Harvard, Columbia, Emory,…
– Andrew L
5
Katherin S.
Dr. Chynn is great, I was a -12 and thanks to Dr. Chynn I’m able to see 20/25 which is the same as contact and glasses. I’m so thankful I choose him. My surgery was 4 months ago and I couldn’t be happier. The reason of why I choose Dr.Chynn…
– Katherin Santana
5
Bangze C.
Best doctor! I’m 20/20 today…
– Bangze Chen
5
Robert F.
I couldn’t be happier with my Lasek procedure! I can see better than 20-20 and the best part – no more reading glasses!! As a Tennis Pro, I could never do traditional Lasik, I couldn’t take that risk of forever having a flap. I’m so thankful I gound Dr. Chynn!…
– Robert F.
5
Joan
Dr. Chynn, Has been an extremely caring physician in my experience. Only just recently, Dr. Chynn took the the time on a Sunday evening while dining with his family, to give both me and my brother who lives in another state input and help viz. my brother’s situation. Dr. Chynn…
– Joan
5
Dursuncan G.
Best doctor ever very patient helped me along the way….
– Dursuncan Gokkaya
5
Matthew A.
I had Lasek surgery in April 2018 and can now see better than 20/20! I had worn corrective lenses for nearly 20 years so the outcome is beyond thrilling! I am so pleased with the service I received at Park Avenue Lasek! Dr. Chynn is very informative and walked me…
– Matthew Alexander
3
Masa B.
Dr. Chynn is a very professional, punctual, and my overall experience was great. Highly recommend!…
– Masa Balandzic
5
Sam
Dr Chynn’s educational background and experience made Park Avenue LASEK an easy choice. Like everyone else I value my health and when it comes to my eyes, I obviously want nothing but the best and after doing some research and speaking with Dr Chynn it was clear that I wouldn’t…
– Sam
5
Saranya R.
My parents got me the best graduation gift ever, LASEK at Park Avenue LASEK. If only they had set me up much sooner, I would have thrown my glasses away a while ago. My parents are both doctors and they decided to choose Dr Chynn over anyone else because of…
– Saranya Ramadurai
5
Rope P.
I´m Ophtalmologist from Brazil, I knew Dr Chynn’s reputation on an international user group for refractive surgeons and saw his educational background and experience, so I wanted to pick up some LASEK tips , visiting his center and yes he is one of the world’s most skilled eye surgeons, He…
– Rope Pe
5
Tigr L.
Still visiting Dr. Chynn after 10 years!…
– Tigr Lily
5
Mia M.
First, I was super sceptical. I did my research on this doctor and found out too much trash talking… but I don’t trust all people say , because we are all different, plus everybody has a right to think and say what he/she wants. So, I’ve called my mom, and…
– Mia Matzah
5
Solve my vision problems!
Dr. Chynn and was the doctor to solve my vision problems! I can’t be more grateful. I have searched for YEARS to find a doctor who could address my vision concerns. While my prescription wasn’t terrible, I had some abnormalities that other doctors were uncomfortable addressing. RK and Lasik were…
– Travis V.
5
I really appreciate his high attention!
If you care about your eyes, come see Dr Chynn. I really appreciate his high attention to every detail involved throughout my experience. It’s my eyes we’re dealing with after all and I couldnt have been in better hands than dr chynn’s. He’s so thorough, he taught me so much…
– Seam S.
5
Fabulous office!
I had LASEK by Dr. Chynn over a decade ago and have fantastic vision. Dr. Chynn’s attention to detail, as well as his exceptional ability to offer the latest cutting edge technology enabled me to see a brand new world without the irritation from contact lens or the inconvenience of…
– Mavis Y.
5
The most experienced eye guy in the world!
If you care about your eyes, come see Dr Chynn. I really appreciate his high attention to every detail involved throughout my experience. It’s my eyes we’re dealing with after all and I couldnt have been in better hands than dr chynn’s. He’s so thorough, he taught me so much…
– Sandra N.
5
I really recommend to all!
It has been a really pleasant experience to me. My vision is perfect now and I felt really accompanied all the steps. I will miss all the team! About Doctor Chynn – I have to say that is not easy to find nowadays someone that really likes and has passion…
– Tecla P.
5
Great experience!
I got Lasek surgery here. The surgery was painless and perfectly executed. My vision is now at least as good as it was with contacts prior to surgery, 20/20. I am very satisfied with the results of the operation and the price of the procedure. Recovery was as expected, medications…
– Leah R.
5
I would recommend Park Avenue LASEK!
Before getting LASEK surgery, I was seeing 20/200, and hating every second of glasses and contacts. Then, I heard about LASEK. I went for a consultation and almost chickened out when I realized I would be awake during the surgery, but Dr. Chynn’s incredible staff were so encouraging every step…
– Jaclyn Y.
5
This is one of the Top 10 Investments!
Park Avenue LASEK is the best place to have LASEK surgery. The Surgeon, Dr. Chynn is the best surgeon in the town. He earned his MD from Columbia Medical School and did his Residency at the best place for ophthalmology, Harvard’s Massachusetts Eye and Ear. The treatment is very thorough…
– Fernando A.
5
A good candidate!
I’ve wanted to have eye surgery since I was a teenager but my eyes used to dry out and I was later told that made me ineligible for LASIK. However, a coworker of mine had LASEK with Dr. Chynn and she recommended him. Since the first visit, I was excited…
– Diser A.
5
He was great!
Dr. Chynn is the type of doctor one wishes was one’s doctor for everything, not just one’s eyes – extraordinarily competent, compassionate, innovative, and thoughtful, as well as being a quality individual. I visited him for my general ophthalmology needs and he was great. I also witnessed patients there for…
– Jim S.
5
All the staff were amazing and engaging!
All the staff were amazing and engaging. It’s not often that you can seek any sort of medical treatment and not only get taken care of but find new friends. Dr. Chynn is a very knowledgeable and professional physician. He takes great care and pride in his work, and wants…
– Aron V.
5
Doctor Chynn is an amazing and experienced doctor!
Doctor Chynn is an amazing and experienced doctor. I trusted him with my only pair of eyes. His staff is very welcoming and exceptionally caring. I would highly recommend people go and get LASEK from Doctor Chynn….
– Dennis F.
5
Very professional!
I had a good experience. everyone was great, very professional. Staff is committed to giving you your best vision….
– Alrick B.
5
He is smart and extremely well-educated!
Found Dr. Chynn through ZocDoc and was very satisfied with my appointment. He is smart and extremely well-educated; I think I counted 6 different college degrees from various institutions. Explains everything very clearly to patients – Lays out what your options are ranging from the most conservative to aggressive treatments….
– Danny S.
5
Thanks to the team!
You need to do good things for yourself. Not wearing glasses is one of the best things I’ve done for my self. It’s been over two years and my vision is fantastic. I can read the paper in the morning and star gaze at night. I am 63 years young…
– John C.
5
Great experience!
Great experience! They were always available and helpful. They explained things to me and gave me plenty of attention. Overall they reminded of what customer service truly means….
– Jonathan T.
5
I am super happy!
Dr. Chynn was such a pleasure to work with. It was the best decision I have ever made. I am super happy! Furthermore, the office is super professional and they truly help you through everything. Excellent experience by an awesome staff!…
– Stella B.
5
Dr. Chynn is clearly a skilled professional!
Dr. Chynn is clearly a skilled professional who knows how to approach all issues pertaining to impaired vision. I had my procedure done about 4 years ago, and I am still seeing with clarity (20/15). He was able to achieve this despite my high prescription (-5.5) and thin corneas. My…
– Donnie W.
5
A friendly nature.
My LASEK was done in 2013 , I had been wearing glasses since the age of 6. At the age of 47 giving bifocals for a year and having daily headaches, I took the step to have LASEK I first went to the largest medical institution that I work for…
– Mark M.
5
Dr Chynn! Everything went very smoothly!
I want the best for my eyes so I went to the best there is and thats without a doubt, Dr Chynn! Everything went very smoothly and I couldn’t be happier….
– Semran T.
5
All contact was professional and friendly!
It’s simple, based on recommendation and then research on Dr. Chynn, decided to do the LASEK procedure with him. All contact was professional and friendly. Each step of the way in the evaluation process through the actual procedure was smooth, fully explained and felt confident all along the way. Having…
– Marty E.
5
I am the healthiest and happiest woman!
Dr. Chynn has saved my eyes and my life. Due to my bad vision I had a very low self-esteem. As a ballet dancer I had to wear glasses for practice and wore nothing going on a stage, back in 90s contacts were not available in Eastern Europe. After I…
– Tanya A.
5
Thanks everyone at PAL for helping me getting rid of my glasses forever!
I looked around for a the best vision correction option for me around NYC at a few centers and chose Park Avenue LASEK after doing some research and learning that LASEK is safer and overall might be a much better option than LASIK. I’m normally very anxious when it comes…
– Rick S.
5
My parents got me the best graduation gift ever!
My parents got me the best graduation gift ever, LASEK at Park Avenue LASEK. If only they had set me up much sooner, I would have thrown my glasses away a while ago. My parents are both doctors and they decided to choose Dr Chynn over anyone else because of…
– Saranaya R.
5
Great experience with staff at Park Avenue LASEK!
Great experience with staff at Park Avenue LASEK! I highly recommend this place! Dr. Chynn was very professional, and I’m very thankful for not wearing glasses anymore! Finally I see clearly, and with no pain! Thank you, thank you, thank you Doctor Chynn!…
– Bojana T.
5
Dr. Chynn is very informative!
I had LASEK surgery in April 2018 and can now see better than 20/20! I had worn corrective lenses for nearly 20 years so the outcome is beyond thrilling! I am so pleased with the service I received at Park Avenue LASEK! Dr. Chynn is very informative and walked me…
– Matt A.
5
I recommend this procedure to any other healthcare professional!
Life after my LASEK surgery has been amazing. Dr. Chynn and his team of associates walked me through my LASEK procedure every step of the way! With their guidance, I knew my procedure would be safe since I was well informed. They’re the only office that creates a WhatsApp group…
– Shawn W.
5
Thanks Dr. C and staff for great results!
Allmost legally blind, so I two other supposedly qualified Manhattan LASIK ophthalmologist surgeons told me that my eyes could not corrected using this procedure. Decided that I would call one last office before totally giving up. Am I ever glad that I did because I now see almost perfectly and…
– Ira M.
5
I am excited for my surgery!
Dr. Chynn and his staff are great! Dr. Chynn is very knowledgeable, and takes his time to explain everything to make you feel as comfortable as possible. LASEK was the best option for me, and I am excited for my surgery! I spoke with a few patients in his waiting…
– Corinne L.
5
THANK YOU DR. CHYNN AND YOUR STAFF!
I had my laser eye surgery done at Park Avenue LASEK surgery around 2010 after having met Dr. Chynn at a Columbia University alumni event. I had previously thought about having it but did not do so because of fears that afterwards my eyes would be dry and need drops…
– Ira M.
5
I highly recommend Dr. Chynn and his office!
Dr. Chynn was amazing. I found him to be extremely knowledgeable with a warm personality. My examination was very thorough & he answered all of my questions & addressed all of my concerns. I never felt rushed & trusted that I was in good hands. I highly recommend Dr. Chynn…
– Renee D.
5
Dr. Chynn, Has been an extremely caring physician in my experience!
Dr. Chynn, Has been an extremely caring physician in my experience. Only just recently, Dr. Chynn took the the time on a Sunday evening while dining with his family, to give both me and my brother who lives in another state input and help viz. my brother’s situation. Dr. Chynn…
– Joan S.
5
IT’LL BE THE BEST CHOICE YOU’VE EVER MADE!
Dr Chynn and the Park Avenue LASEK staff have to be easily the best trained out there in this line of work. I know, because before I had my LASEK, I was desperate to find a solution to getting rid of contacts and glasses that didn’t involve cutting from LASIK…
– Tarek E.
5
Everything is going well!
I had my LASEK done around 2009 and it was the best money I’ve ever spent. I’m not sure if anyone has changed since I’ve been there but I continue to recommend friends and family to Dr Chynn. I originally came here because I was tired of wearing glasses -…
– Kenneth T.
5
I personally recomend him to my friends and family!
If not the top, at minimum one of the best surgeons in the US. Dr. Chynn does the latest and more importantly safer procedure for vision correction “LASEK”. I personally recomend him to my friends and family….
– Roman I.
5
The surgeon and the staff are so professional!
I am a doctor my self (Internal Medicine Doctor) and my vision is basically everything in my life. I choosed Park Avenue LASEK because I want to do laser surgery in the safest way possible. Park Avenue LASEK is the only clinic in Ny that they do non cut laser…
– Maher T.
5
I would recommend Park Avenue LASEK!
Park Avenue LASEK is the place to go for experience and care in regards to what is best for your eyes and vision. The step by step process before surgery is laid out before you and pretty straight forward. The surgery takes a very short while and was pain free….
– Juda B.
5
I am so happy with the results!
I got my surgery in the middle of November. I am so happy with the results! Right now my vision is better than 20/20. Dr. Chynn is great. He answers all questions. Just make sure you follow the instructions and you’ll be great! Thank you, Dr. Chynn!…
– Svetlana B.
5
I’m glad I made this choice!
I decided to have the laser correction after driving my son to hockey practices for so many nights using glasses and lenses. My husband had done it 2 years earlier and had amazing results. The staff at the clinic were professional and took the time to explain the procedure and…
– Sang E.
5
The house without glasses!
As someone with -11 in vision, I was not qualified for LASIK at all doctors consulted. I was excited to have been refered to Park Avenue LASEK and Dr. Chynn, who had surgical experience with patients in the -20s. It’s only been one week post-op for me and still in…
– Xia Z.
5
Dr. Chynn is a perfectionist!
Dr. Chynn is a perfectionist. He is a very passionate man and does his best to ensure top notch quality healthcare. I highly recommend him. I chose Doctor Chynn because he is the best eye surgery doctor and is the most highly educated eye surgeon in the New York city…
– Francois T.
5
Great results!
Great results! I was doubtful about getting LASEK Vs LASIK but I am so happy decided to go with LASEK. I can see as well as with contact less before, and my eyes are not dried at all. Post surgery recovery was a little slow (4-6 days) but it was…
– Jesus T.
5
The money I spent was truly worth it!
Dr. Chynn has done the LASEK surgery for more than 20,000 times (he’s been doing this for around 30 years). He has very thorough knowledge of what happened with my eyes, very careful and meticulous handling during the Operation itself. After the Post-Op, he can predict very accurately what is…
– Fernando A.
5
Dr Chynn is the best!
I just finished my 9 year post op visit and I’m still 20/20! Dr Chynn is the best!!! I can remember the moment when Dr Chynn asked me to read the sign across the street and I could without any problem at all. This was the best money that I…
– Alisson J.
5
Dr. Chynn was the best decision I’ve ever made!
Dr. Chynn was the best decision I’ve ever made. I went to almost every LASIK center in NYC, but none of them could treat me vision because I had both a high prescription AND thin cornea, so they all said it would be unsafe to get LASIK. One day, a…
– Toshi Y.
5
Thanks to everyone at Park Avenue LASEK
I chose Park Avenue LASEK since they are the ONLY ones who offered a completely NON-cutting procedure with an extremely successful track record. The fact that Dr Chynn helped invent LASEK when he was at Harvard comforted me and sealed the deal. The procedure itself was completely pain-free and now…
– Sam T.
5
Thank you for everything!
I don’t even know where to start. It goes without saying that Dr. Chynn is literally the most experienced eye surgeon in NYC – the center of the world. He helped invent LASEK and then invented his own procedure, LASIK, that gave people who couldn’t have incision surgeries the ability…
– Vladya H.
5
Every time it is fast and nice experience!
Dr. Chynn is my primary eye doctor. My vision was not that good since I was a 15 years old. In 2010 I had a LASEK surgery, and it helped a lot. Now I see very well. Since then I do regular checkups with Dr. Chynn. Every time it is…
– Oleg K.
5
Extremely pleased!
I had an eye corrective surgery in 2015. I couldn’t be happier with the results and recommended it to my wife who just completed the same procedure . We don’t wear glasses now and are extremely pleased with the professionalism of Dr. Chynn and his staff . All instructions and…
– Nikolay N.
5
Thanks to Dr. Chynn I can see like my contacts
It has been a month since I got my surgery done by Dr. Chynn I could not be happier with the results. My prescription was -12 which means that I was 3 times legally blind, I could not see anything without my glasses or contacts. But thanks to Dr. Chynn…
– Katherine S.
5
Amazing results only one month post-op!
I never usually post reviews but I just had to express how happy I am with my one month follow-up visit at Park Avenue LASEK. My prescription was really bad prior to my procedure. I began wearing glasses in first grade. Today my vision is better then 20/20…it’s 20/15! Amazing…
– Melody M.
5
He’s extremely precise and impeccable in his work!
I choose Dr. Emil Chynn because he is the most famous LASEK surgeon in the world. Through my correspondence with his practice ‘Park Avenue LASEK’, he reassured me by email he’s fixed hundreds of cases like mine & a case like mine would be even “routine” at Park Avenue LASEK….
– Elle D.
5
We couldn’t stop telling all our friends!
I met Dr. Chynn on the Tennis Court where he signed up to take lessons at my Tennis Academy. I told him that I just started to wear reading glasses about 2 weeks ago and I hated it because of having to constantly adjust my eyes to different distances. Plus…
– Robert F.
5
Completely painless!
I had the procedure done a week ago and I can honestly say it was completely painless! Jane prepped me before and answered any questions I had and made sure to calm my nerves. Dr. Chynn is very knowledgeable, confident and available. The entire team was quick to reply to…
– Sabrina D.
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Our Team
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Emil Chynn, MD, MBA, FACS
Medical Director, Lead Surgeon

Tetyana Dovzhuk MD, PhD
Sherry Guo, MD, PhD
Cornea & Refractive Fellow
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Tarek Elnicklawy
Ms. Kay Jain
Jane Huang, MA
Front Desk
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Our Most Popular Services
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LASEK
100% non-cutting
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Ortho-K
Works while you sleep
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Cross-linking (CXL)
Keratoconus treatment
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As featured by

Corporate Discount Program
Park Avenue LASEK is happy to offer you our Corporate Discount Program, where all your employees (and their immediate family members) will receive a free upgrade to lifetime warranty (worth $1000 without this plan) for their more modern, safer, non-cutting, all-laser LASEK laser vision correction.
Download for more information.
News
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What Makes a Keratoconus Specialist?
Feb 26, 2019
If you have keratoconus (KC) or the related keratoglobus or pellucid marginal degeneration (PMD), you need to see a cornea specialist. This is an ophthalmologist or eye surgeon, who is…
Read More
CXL and epi-off?
Feb 20, 2019
Q: List, I am a member of the large keratoconus group on Facebook. I dont really post much, but its interesting to read what patients with this condition are writing…
Read More
After Lasek Treatment
Feb 20, 2019
Looking to get away and escape the urban bustle of New York City? Nowadays, you can find fantastic flight fares to almost everywhere in the world, especially if you travel light and limit your luggage.
Read More
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Book Your Free LASEK Consultation
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Focused on you
Trusted Care
We want to treat you! We know LASEK is over 10x safer than LASIK and we want to show you that this is a newer, more advanced solution to laser vision correction.
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Before the appointment
Help us speed up your visit! Download and complete these forms before your appointment:
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LASEK vs PRK
Many of our ptients have come in asking what makes our procedure different from a PRK since in both procedures the skin is removed. To put it simply, LASEK is virtually painless compared to a PRK.
There is virtually no pain or discomfort with our LASEK procedure. For patients that elect to have the older PRK surgery, there is immense pain for up to a week or more after surgery. While both procedures don’t cut flaps, in a PRK the skin is sanded it off, which uses a much more abrasive force than the gentler LASEK procedure.
Rather than using a softening solution to allow the skin to loosen, a PRK procedures opt to remove the skin right away. PRK procedures use a small sander to sand the skin off to reach the cornea. The result of this force is that patients experience intense pain and heal slower than with the LASEK procedure.
LASEK vs LASIK
LASEK is the most advanced version of laser vision correction that is possible with modern medicine today. LASIK is 10x as risky, reduces the structural integrity of your eyes, can worsen glares, halos, and dry eyes, may not get you to your best vision possible. There are also issues of flap complications before and after surgery that may cause a LASIK patient to have poor vision or even go blind after treatment.
The major fear of LASIK after surgery is cutting the corneal flap. There have been many instances of corneal flaps dislodging after trauma to the head, getting poked in the eye etc. Thus, the flap created during LASIK carries two major risks: the risk of a poor flap placement or a disintegrating flap in the OR, and the postoperative risk of having a flap dislodging at any moment.
The end result of all these complications, if they are not properly treated is a corneal transplant and patient will end up being blind. This is why professional sports players, the US military, and airline pilots all opt for LASEK treatments over LASIK
Dr. Chynn use to perform LASIK and had LASIK on himself, but switched over to LASEK (or SafeSight) in 2005 because he realised that it was a much safer procedure with less risk and complications than a LASIK.
LASIK Procedure: This video shows a LASIK procedure doing an enhancement (LASIK over a LASIK). The doctor attempts to flip the flap up to perform the procedure, but the flap disintegrates as soon as the doctor begins the operation.
Standard vs HD Procedure
Patients are often confused about all the terminology regarding LASIK and LASEK. Basically, the former is cutting, and the latter is non-cutting. A totally different issue is custom vs. standard. For clarity, here are all the terms that all indicate custom, meaning these terms are all synonyms: custom, wavefront, CustomVue, Hi-Def. The non-custom, non-standard type of treatment is usually referred to as “standard” (because non-custom or non-hi-def sounds bad to the customer). You should be very clear about what is the difference between these two options.
Standard means the laser is correcting your prescription to the same degree of precision as glasses or contacts–namely, in increments of +/- 0.25 diopters. For example, your contact or eyeglass prescription is always given in quarter diopter increments, like -3.00 or -3.25, there is nothing in-between. If you’re observant and have looked at your prescription over the years, you’ve already noticed this, so if your optometrist gives you a prescription for new glasses that were -3.18, you would say something like, “Wow, I guess you guys have figured out how to grind glasses more precisely these days–that’s really cool!”
Unfortunately, that’s also not true. It’s basically impossible to make eyeglasses or contacts that accurate. More unfortunately, these days some contact and lens manufacturers are trying to market their products as “digital” or “custom” or “wavefront.” This is impossible, as when you look out of contacts or glasses, the contacts move in your eye, and your eye looks out of different parts of your glasses. Therefore, even if the lens is “custom” you will wind up looking out of the wrong part of the lens, so you will not see any benefit from your “digital” lenses (that you paid more for).
In contrast, with LASEK, you can get a correction that is actually the precise one you need–not some average to the nearest quarter. Moreover, with the VISX S4 IR system, you will actually have 50 different prescriptions lasered onto your cornea accurate to the nearest hundredth! This is why these days, after our Hi-Def SafeSight procedure, the majority of our patients are actually seeing better without glasses and contacts than they did with them–because it’s just a much more accurate prescription.
Furthermore, when Dr. Chynn was performing CustomVue LASIK, he wasn’t getting nearly this many people better than 20/20. The reason is that the CustomVue WaveScan is obtained before the cut in LASIK is made—yet many published studies have reported that cutting a flap distorts the WaveScan. Therefore, the surgeon winds up using a WaveScan to laser the cornea that is not 100% accurate–because it was obtained before the flap was made.
This is why when Dr. Chynn was performing CustomVue LASIK, he was only getting about 10-20% of his patients seeing better than 20/20. Once he switched to LASEK, he immediately started getting 30-40% of his patients better than 20/20. Now, it’s more like 50-60%. The reason his results are better now, with the same laser, is because by not cutting a flap, the WaveFront scan is 100% accurate, and not distorted by the flap, so the treatment is exactly what is needed, rather than what would have been needed if a flap hadn’t been cut (but was) in LASIK.
We understand that this explanation is somewhat complicated, so invite you to call our centre, make an appointment for a free consultation, and then have Dr. Chynn or one of his 4 doctors (all true MD surgeons, not ODs or optometrists or “techs”) explain this in more detail.

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Park Avenue LASEK
102 E 25th St(Corner of Park Avenue South)
New York, NY 10010
- Phone:
212-741-8628
- Email:
[email protected]
(Do not send personal health information by email.)
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- Monday:
9:00 AM – 6:00 PM - Tuesday:
9:00 AM – 6:00 PM - Wednesday:
9:00 AM – 6:00 PM - Thursday:
9:00 AM – 6:00 PM - Friday:
9:00 AM – 6:00 PM - Saturday:
Closed - Sunday:
Closed
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Call 212-741-8628


