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LASIk Self-Evaluation Test

Seeking LASIK eye surgery in New Jersey? Find out if you are a LASIK candidate by taking this simple test.

LASIk Self-Evaluation Test

Ask Dr. Hersh

If you have any questions regarding LASIK or vision correction options please fill out the contact form below and Dr. Hersh will be happy to review your questions.

Hear From Our Patients LASIK

"Dr. Hersh and his staff were excellent. I would recommend the Cornea and Laser Eye Institute to anyone."

Luke Petitgout, Pro Athlete
New York Giants Football

Hear From Our Patients LASIK

LASIK Laser Eye Surgery New Jersey

If you are seeking LASIK in New Jersey call us today to get the answers you have been seeking. We offer LASIK consultations so that our patients can make informed decisions from experienced professionals. The Cornea and Laser Eye Institute - Hersh Vision Group offers other numerous vision correction options: Custom LASIK, Wavelight LASIK and LASEK, PRK, All laser LASIK with IntraLASE™, and NearVision CK.


The Most Advanced LASIK Technology

For those of you considering LASIK eye surgery the recent advancements in technology have made lasik a better, more effective procedure. For a complete understanding of our blade-free LASIK platform with Advanced Wavelight Technology please see our NEW page on IntraLase. LASIK eye surgery customized for you!

LASIK Technology

Laser In Situ Keratomileusis (LASIK)



Laser in situ keratomileusis (LASIK) is the most popular method of laser eye surgery.  LASIK uses an excimer laser to correct nearsightedness, farsightedness, or astigmatism by removing a thin lenslet of tissue from the surface of the cornea (the clear, front "watch crystal" of the eye).  This is analogous to removal of a "tissue contact lens".  Dr. Hersh has been performing LASIK for over 20 years.

In LASIK, which is now an "all-laser" technique, a pancake-like thin flap of the cornea is first prepared with a high speed laser called Intralase. Here at the Cornea and Laser Eye Institute - Hersh Vision Group, we use the all-laser technique exclusively. The flap acts to preserve the surface epithelial cells (which are like tiles on a floor) to promote quick healing and recovery of vision (most patients can drive and return to work the day after LASIK). Next, the Wavelight excimer laser is used to remove a small amount of tissue from the corneal surface beneath the flap. The excimer laser used in LASIK  produces a beam of invisible ultraviolet light energy, which when applied via an eye tracking mechanism, results in meticulous removal of this "tissue contact lens".

After corneal reshaping, the LASIK procedure is finished when the corneal flap is repositioned. When the flap is replaced, it lies in the bed of excimer laser removed tissue, causing the surface to change shape with the effect of decreasing nearsightedness, farsightedness, or astigmatism.

LASIK procedures are performed under eyedrop anesthesia and are not painful. A lid retainer supports your lids to avoid blinking during the procedure and a video eye tracking mechanism compensates for any eye movements. At the end of LASIK, clear protective eye goggles are placed. Eyedrops to avoid infection and control inflammation are used for one week, in addition to artificial tear drops.

LASIKYou are generally comfortable after the LASIK procedure. There may be some stinging for a few hours afterwards. Vision usually begins to improve by the next morning. Most people can work the next day; however, you will be seen in the office for an examination on that day.

There are two basic types of possible side effects with LASIK. Because patients may respond and heal differently, it is possible that the entire refractive error may not be corrected or that there might be some overcorrection. If undercorrected, your vision will be clearer without glasses, but less powerful glasses may still be necessary to fine tune to your best vision. For some patients who are overcorrected, especially those patients who are somewhat older, reading vision might be difficult without glasses. Furthermore, older patients, 40 years and older, may require reading glasses after the procedure. Patients who do not achieve full correction usually can undergo a retreatment procedure to further improve their vision.  These retreatment procedures, if necessary, are usually done after the 3 month visit.

The following animations demonstrate the 2 parts of the all-laser LASIK procedure:  Laser flap creation and Wavelight correction of nearsightedness, farsightedness, or astigmatism.   (Click on icon to right to choose video). 

IntralaseWe will discuss the possibilities of under and overcorrection in your particular case and what you may reasonably expect to achieve with your vision. In general, around 5% of patients will undergo a retreatment enhancement procedure to further improve vision if it is not clear after 3 months. In addition, other optical side effects include haloes around lights and glare, especially at night. These side effects have been much improved with the new Wavelight LASIK procedure. The other group of relatively rare complications may be secondary to problems with the LASIK surgery itself and subsequent corneal healing. We will discuss these possibilities in detail.

Although most excimer laser treatments today are done with the LASIK technique, some people may be better off with the surface LASEK/PRK procedure. Our preoperative examination and measurements determine our recommendation of the procedure which would be best in your particular situation.

In general, possible benefits of LASIK as compared with LASEK/PRK:

  • Tissue removal beneath a flap rather than at the surface preserves the surface corneal cells (epithelium) with the advantage of faster visual recovery
  • Postoperative discomfort is reduced
  • Tissue removal beneath a flap may decrease the risk of haze or scarring

Some risks of LASIK as compared with LASEK/PRK include:

  • Surgical risks (these are rarer with surgeons experienced in LASIK)
  • Damage to the corneal flap
  • Difficulties with the flap postoperatively

The Cornea and Laser Eye Institute is located in a beautiful facility in Teaneck, New Jersey, an easy commute from Paramus, Morristown, and Princeton, and is the preferred destination for LASIK patients across the bridge in Manhattan, New York City. Our NJ LASIK patients are encouraged to visit our office and have their questions answered personally.

In depth articles and studies:

LASIK Retreatment

In the news:

Should bilateral LASIK be performed sequentially or simultaneously? - January 1, 2000
Re-treatment requires forceps to maintain clear interface, avoid flap damage - February 1, 2000
Tracking trends in LASIK enhancement - March 1, 2000
When two refractive surgeries are better than one - May 1, 2000
At Issue: LASIK enhancement preferences - February 15, 2002
At Issue: Refractive procedures in 2010 - December 15, 2002
At Issue: Lens exchange vs. corneal refractive surgery - June 15, 2004
What are practical applications to civilian refractive surgery from extensive military refractive results, and how could civilian surgeons incorporate those applications into practice? - March 25, 2010



Preprocedure examination Similar Similar
Procedural difference Surface epithelium removed Corneal flap prepared
Excimer laser procedure Similar Similar
Postoperative discomfort Variable Usually minimal
Visual recovery Fluctuates over 1-2 weeks
Starts improving at 1 day
Possible side effects Glare/halo/ghosting
Corneal haze
Corneal flap problems


New Study of LASIK for Farsightedness:  We are pleased to announce a new research study for patients who are considering LASIK surgery for farsightedness or farsightedness with astigmatism. Farsightedness is a problem in the optics of the eye which requires you to wear reading glasses and often glasses for clear distance vision as well. The study is being conducted at The Cornea and Laser Eye Institute, P.A.

You may be eligible for this study if you are 18 years of age or older, need reading glasses and often glasses for clear vision as well, are considering LASIK surgery and are a good candidate for LASIK. The KXL LASIK hyperopia study is being conducted in several clinics in the U.S. The duration of the study is at least 24 months.  Many of the procedures for this study are routine procedures used for patients who undergo LASIK, and the actual procedure that you will have is our standard LASIK procedure.

To read more about the study, go to 



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