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The History of LASIK Technology

LASIK is the number one choice of refractive surgeons and patients worldwide to reduce or eliminate dependence on glasses and contact lenses. The first LASIK procedure was performed more than 17 years ago, and more than 14 million procedures have been performed in the United States alone. LASIK treats low to high amounts of nearsightedness, farsightedness, and astigmatism. The procedure works by reshaping corneal tissue layers just beneath the outer surface of the eye. It is generally a painless procedure with a very quick recovery for most patients. There are no needles used; only a drop to numb the cornea to take away any pain sensation.

LASIK is a two-stage process.

The initial stage involves the creation of a"corneal flap," a hinged tissue layer that is lifted back like opening the hood of a car. Stage 1 historically has been performed with an instrument called a microkeratome, a surgical instrument that the doctor uses to manually create the flap. Though millions of procedures have been performed utilizing microkeratome technology, it is no longer considered to be the most advanced treatment available.

LASIK in the 21st century- iLASIK

In the past 4 years LASIK has advanced significantly. Today's technology delivers a safer, more-predictable result than ever before with a procedure known as iLASIK; the combination of Intralase and CustomVue laser correction.

LASIK Technology

Lasik StepsThanks to the revolutionary laser technology called Intralase, the first stage is now performed with unmatched precision using a computer-guided laser beam. Flaps can be custom designed based on the unique parameters of a patient's eye. Intralase offers the safest and most precise process of flap creation in the world today. Stage 2 is the actual correction stage where prescription is removed using an excimer laser treatment. The excimer laser fires a cool, invisible beam with the average treatment time ranging from 15 to 45 seconds and the patient feels nothing. The excimer laser allows more precision than ever thought possible. One pulse of the beam removes 0.25 microns of corneal tissue. To put this precision into perspective, note that the average human cell is 10 microns in diameter and a typical human hair is 70 microns in thickness. These treatments are custom-designed based on unique prescription characteristics of each patient by a method known as Wavefront Analysis. WaveScan Wavefront mapping is the first step in CustomVue Individualized Laser Correction. After acquiring and reviewing WavePrint maps, Dr. Eisner can now send this unique information directly to the VISX Star S4 IR ActiveTrak Excimer Laser System and provide absolutely the highest level of precision available in laser vision correction today. More precision equals better outcomes! 


RecoveryRecovery from LASIK is generally very easy. Most patients will notice an improvement in vision without glasses even the night of their surgery. Functional vision usually returns within 24 to 48 hours after your procedure. The recovery is generally painless. Many patients are able to drive themselves back the next day for their 1-day post-operative exam with Dr. Eisner.

For more information regarding your recovery, go to Life after LASIK Vision Correction.