Vision Correction Procedures

Vision CorrectionDr. Peter Hersh and the Cornea and Laser Eye Institute-Hersh Vision Group has extensive experience in the complete range of the many available procedures and technologies to surgically treat refractive disorders of the eye. Since beginning over two decades ago with the first clinical studies of laser vision correction, we have since treated thousands of patients with successful outcomes.  Indeed, Dr. Hersh was lead author of the clinical trial which led to first FDA approval of laser vision correction in the United States.  Our NJ LASIK and laser vision correction patients are encouraged to start here to learn more about the procedures offered at The Cornea and Laser Eye Institute, and then to schedule a free LASIK consultation to have their questions answered personally.

At the Cornea and Laser Eye Institute, vision correction candidates undergo a comprehensive and lengthy evaluation using sophisticated technologies to optimize results and eliminate patients with chances of a poor outcome. Using this evaluation, your individual needs can be matched to the proper procedure and laser technology to achieve the safest and best outcome.

Patient View

Laser In Situ Keratomilieusis (LASIK)

LASIK is the most popular method of laser vision correction to treat nearsightedness, farsighteness, and astigmatism.  In laser vision correction, an excimer laser produces a beam of light in which high energy is concentrated. The laser meticulously removes small amounts of tissue from the cornea. This reshapes the corneal surface, allowing it to better focus the image on the retina, with the goal of reducing a patient’s reliance on eyeglasses or contact lenses. In LASIK, the laser treatment is performed under a thin “flap” of the cornea which is created with a second laser, called a femtosecond laser. This differs from the LASEK/PRK procedure in which the laser treatment is performed on the surface of the cornea after the surface epithelial cells are removed. Vision generally is improved the day after LASIK.

Wavelight Allegretto Eye-Q Laser (Wavelight)

For LASIK at the Cornea and Laser Eye Institute, we use the Wavelight excimer laser, the latest state-of-the-art vision correction laser system. The Wavelight system uses a very small laser beam of less than 1 mm to shape the cornea. This beam is moved rapidly across the corneal surface in a computer-controlled pattern of tiny overlapping spots. In addition, by measuring and correcting all eye movements during the laser procedure, the Wavelight system maintains accurate placement of the laser beam which provides additional control.

All-Laser LASIK (Intralase)

The Intralase laser is a new technology used to perform the first step in LASIK – the preparation of the corneal flap. Taking advantage of an advanced laser technique using a very short pulse, high speed femtosecond laser, the Intralase creates the flap in a uniquely precise mannner. The Intralase laser places over a million microscopic, low energy spots which split the cornea layers to prepare the flap to meticulous specifications with unsurpassed safety.
LASIK Diagram

LASIK Procedure

Laser Epithelial Keratomileusis/Photorefractive Keratectomy (LASEK/PRK)

In this excimer laser procedure, the surface of the cornea is reshaped after the surface epithelial cells are removed. This differs from LASIK, in which the laser is applied beneath a corneal “flap”. Otherwise, the laser treatment is the same. Similarly, the goal of LASEK/PRK is to reduce a patient’s reliance on eyeglasses or contact lenses. LASEK/PRK may be advantageous in patient’s with thin corneas or corneal surface problems.

Reading Vision Correction

A new technique called Conductive Keratoplasty (CK) has been recently approved by the FDA to correct farsightedness and improve reading vision. Dr. Peter Hersh, Director of the Institute, presented the study results to the FDA ophthalmic devices panel in November, 2001. The goal of CK is to reduce the dependency of farsighted people on glasses and contact lenses for both reading and distance vision. Conductive keratoplasty uses a high frequency, low power energy source to deliver electrical energy to the outer portion of the cornea (the clear front of the eye). The treatment spots are placed in a circular pattern to reshape the tissue. This steepens the cornea’s optical surface to better focus light and treat farsightedness.

Phototherapeutic Keratectomy (PTK)

The phototherapeutic keratectomy procedure (PTK) uses the excimer laser to treat patients with corneal disorders, such as scarring, dystrophies, degenerations, and surface irregularities.


This is non-laser procedure which may be helpful for patients with keratoconus or corneal optical irregularities after other surgeries. Intacs were originally FDA-approved to correct low degrees of nearsightedness.
Corneal Transplant

Corneal Transplantation

The Cornea and Laser Eye Institute is one of only a few centers in the region with specialized expertise in corneal transplantation. The goal of corneal transplantation is to restore sight to a patient whose cornea has been damaged by disease, injury, or inborn problems.


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

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

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