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LASEK – Standard vs HD Procedure

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Our NYC Eye Doctor Explains

As soon as a discussion about refractive laser surgery begins, many acronyms, unfamiliar words, and abbreviated medical terms enter the conversation. There is LASIK, and there is LASEK. There are custom procedures, standard, and Hi-Def… What are these names?

Our New York City eye surgeons understand how confusing and overwhelming all of this terminology can be. Read on for a basic explanation of the differences between your two main options for laser surgery: Standard or Hi-Def.

Intro to the Basics of Refractive Laser Surgery

The first thing you need to know is that the primary difference between LASIK and LASEK is that the former involves cutting, and the latter is described as non-cutting. Beyond this distinction, the procedure can be custom or standard. “Custom” has many synonyms: Hi-Def, Wavefront, and CustomVue.

What does “Standard” mean?

If you have standard LASEK in our New York City clinic, it means that the laser is correcting your vision prescription to the exact same degree as your eyeglasses or contact lenses. That means your vision will be corrected based on the nearest quarter diopter increments, such as -4.00 or -3.75.

Therefore, if your true vision prescription is -3.86, the correction will be rounded off to -4.00, which is the nearest quarter measurement. That is as precise as vision can get with Standard refractive laser surgery.

What is the Hi-Def (CustomVue) procedure?

When our New York City eye doctor performs LASEK, he can correct your vision more precisely – and not based on a rounded-off average. In fact, with the state-of-the-art VISX S4 IR wavefront guided excimer laser that we use, you will be able to benefit from 50 different prescriptions lasered onto your cornea. In addition, the precision of these prescriptions can be done to the nearest hundredth! Your vision can’t get any clearer than that.

In practice, the Hi-Def SafeSight procedure that we perform has given many patients significantly better vision than they ever experienced with glasses or contact lenses.

At present, Dr. Chynn performs Hi-Def/ CustomVue LASEK for many New York City patients. In comparison to CustomVue LASIK, which he used to perform, this more modern procedure is giving people enhanced visual acuity. Why does this happen?

Many published studies explain that cutting a flap (the old method) distorts the WaveScan, so the surgeon is no longer able to laser accurately. However, with the newer, non-cutting method of Hi-Def/ CustomVue LASEK, the accuracy is much higher because there is no cut flap to distort the WaveScan.

Want to Understand More? Book a Consultation in Our NYC Eye Care Center

It is important to us to keep our patients informed and well educated about the latest developments in eye care. We know that this information about laser eye surgery is complex, and if you’d like to understand it more clearly, we’ll be happy to help.

To learn more about the advantages of LASEK and CustomVue, Hi-Def, or Wavefront, please contact our New York City laser center to book an appointment. Come prepared with your questions, and Dr. Chynn or one of the four MD eye surgeons on his team will be pleased to provide detailed and patient explanations!

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Because Non-Cutting is the Safest™

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No other laser vision correction surgeon in New York….

No other laser vision correction surgeon in New York....

...offers you the opportunity to have a Free Remote Consultation with the surgeon! Ask Dr. Chynn your main question or concern, and will answer, personally, within 2 business days!

Unsure whether you're a good candidate because of a lot of astigmatism? Large pupils? Dry eyes? Maybe you were rejected by LASIK surgeons due to a “thin cornea” or high prescription.

Take advantage of this incredible opportunity to find out if LASEK is an option for you from Dr. Chynn, our famous, cornea fellowship-trained, Columbia & Harvard graduate who’s in MENSA & was the 1st eye surgeon in NY, NJ, CT & PA to get LASIK, & has performed 1,000 PRKs, 5,000 LASIKs, 10,000 LASEKs, and 5,000 epiLASEKs

But please be considerate. Dr. Chynn gets paid $1,000/hour as a consultant for expert networks & expert witness, so please limit yourself to your most pressing question or concern, as he’s doing this for free on a trial basis to help interested patients.

Please include the information below in your email so Dr. Chynn can answer your question specifically.

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No other laser vision correction surgeon in New York….

This Form Will Be ANSWERED by Dr. Chynn HIMSELF - NOT a Salesperson!

Dr. Chynn graduated from Dartmouth + Columbia + Harvard + Emory + NYU and has been featured on CNN, ABC, NBC, CBS, Discovery Channel & in the NY Times & Wall St. Journal

He's performed 1,000 PRKs, 5,000 LASIKs, 15,000 LASEKs - more than any surgeon in the US

He got LASIK in his right eye & LASEK in his left eye, so is UNIQUELY qualified to tell you the +/-'s of BOTH procedures – from BOTH a Surgeon's & Patient's point-of-view!


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