Corrective Laser Eye Surgery ? Advances in Lasik Eye Surgery Procedures

In order to correct vision, surgeons use lasers to reshape the cornea by intervening on the tissues on the underlying or stromal layer. The medicine currently comprises two very effective types of laser eye surgery: the Photo Refractive Keratectomy (PRK) and the Laser-Assisted In Situ Keratomileusis (LASIK).

In Photo Refractive Keratectomy, the doctor manually scrapes away the cornea and corrects the vision using an excimer laser. Unfortunately the epithelium layer will grow back in time, not to mention that the recovery period is longer than with LASIK.

On the other side, PRK procedure involves fewer risks because the surgeon doesn’t cut the cornea.

LASEK (Laser Assisted Sub-Epithelial Keratomileus) is the new and improved PRK and uses a solution with alcohol to soften the area before removing the epithelium. After the excimer laser reshapes the stroma, the surgeon replaces the epithelium. With LASEK the healing process is shorter than with PRK.

Next, LASEK developed into Epi-LASEK. The doctor preserves a living layer of the epithelium using a separator and after the vision is corrected with excimer laser, the layer is replaced. The healing process is even shorter now.

LASIK or Laser-Assisted In Situ Keratomileusis cuts the cornea flap with a microkeratome metal blade, reshapes the eye with an excimer laser and repositions the flap. This procedure corrects vision right away and the patient will only experience some blurriness during the next 24-hours.

Custom Vue LASIK is pretty much the same thing as LASIK but it uses Wavefront software. The technology used is 25% more accurate than any standard method and is used to map the optical system and to guide the laser to change the stroma.

With Custom Intra LASIKthe flap is made using a femtosecond Intralase laser. Then with the help of Wavefront guidance the excimer laser corrects the visual errors.

According to the experts this is the most advanced procedure for corneal flap creation but unfortunately it is also the most expensive one.