EyeSTAR lasik institute for laser vision correction
 







LASEK


LASEK (laser epithelial keratomileusis) is a relatively new procedure that is technically a variation of PRK. Its diffence from PRK is such that in PRK, the epithelium is removed whereas in LASEK it is preserved and put back. Because of that in LASEK there is less pain and the healing is faster than PRK.
LASEK is used mostly for people with corneas that are too thin or too flat for LASIK. It was developed to reduce the chance of complications that occur when the flap created during LASIK is not the ideal thickness or diameter.


1- In LASEK, the epithelium, or outer layer of the cornea, is dented like the letter C with a fine blade called a trephine.
2- Then the surgeon covers the eye with an alcohol solution (perhaps one part alcohol and four parts sterile water) for around 30 seconds. The solution loosens the edges of the epithelium. It separates the epithelium from underlying stroma layer.
3- After sponging the alcohol solution from the eye, the surgeon uses a tiny hoe to lift the edge of the epithelial flap
4- and gently fold it back out of the way.


5- Then she uses an excimer laser, as in LASIK or PRK, to sculpt the corneal tissue underneath.
6- Afterward, the epithelial flap is placed back on the eye with a kind of spatula.
7- Just like other forms of laser treatments, cornea gains a new shape for ideal focusing.
After LASEK
In many ways, what you can expect from LASEK is similar to what you can expect from LASIK, but there are some differences. Patients usually wear a bandage contact lens for around four days. You may feel eye irritation during the first day or two afterward. Also, the time it takes to recover good vision is often longer - up to four to seven days. Of course, it varies from one person to the next.