Whats the difference between Lasek and Lasik?

Question

Whats the difference between Lasek and Lasik?

Answer 1

LASIK eye surgery is the latest, most talked about form of laser eye surgery. It uses an excimer laser that performs the actual operation of reshaping the cornea to restore proper vision. This type of laser has the ability to vaporize selected portions of the cornea without generating heat. The surgeon makes a small incision on the outer layer of the cornea to produce a flap. This flap is folded back out of the way while the laser makes the necessary corrections to the underlying portion of the cornea. Upon completion of the laser processing, the corneal flap is repositioned, restoring proper vision almost immediately. The entire process takes only a few minutes, it's virtually painless, and it works wonders!

LASEK uses a 20% alcohol solution to soften the outer layer of the cornea for easy removal. This layer is then replaced after the laser process has been completed. The major advantages of LASEK is a shorter healing time than PRK and no cutting is done as with LASIK procedures.

Answer 2

Lasek is an acronym for laser assisted epithelial keratoplasty/and lasik is an acronym for laser assisted in situ keratomileusis.''''go figure

Answer 3

http://www.lasikindia.net provides you complete information and comparision too.

Answer 4

To correct a prescription, you need to access a layer of the eye called the Stroma, how you get there is where the different names come in.

In LASIK, you cut a flap through the surface epithelium (approx 50um) and Bowmans Layer into the stroma. Generally this flap is around 90 - 150um thick depending on how good your surgeon / technology is. Two main ways of doing this are with a microkeratome (bladed instrument) or a femtosecond laser. An excimer laser is then used to ablate the required stromal tissue to correct your prescription. Flap back down and off you go. Quick healing time, no mess or fuss. But beware - plenty of potential complications viz: flap striae, folds, epi ingrowth, ectasia etc.

LASEK: Is the currently fashionable name for a type of surface treatment. It is known in other guises as PRK, Trans Epi, No Touch, All Laser etc. To access the stromal tissue, the epithelium and Bowmans layer are removed. In Trans Epi/No touch/All Laser, the excimer laser is used. In PRK, an instrument called a hockey knife is used.LASEK, dilute alcohol is used. Once this tissue is removed, the excimer laser removes stromal tissue. A bandage contact lens is placed over the eye and the surface tissue re-grows over a 3-4 day period. It hurts a bit and visual recovery is slower. However, risks are much reduced, mainly to haze.

Hope this helps

Answer 5

Here ya go, Josh!

Lasik: Laser-Assisted In Situ Keratomileusis

Lasek: Laser Assisted Sub-Epithelial Keratomileusis

The link below is a link to a chart that compares them for you!

Answer 6

one lets you into the Royal Marines and one doesn't