Pathologies and eye surgery
KERATOCONUS
   What is keratoconus
   Optical correction
   Keratoconus:
   Can cornea transplant be avoided?
   M.A.R.K.
   Cross-linking
   I.C.R.S. or Intracorneal Rings
   Combined techiques
   Cornea Transplant

VISUAL IMPAIRMENTS
REFRACTIVE SURGERY
AND LASER TREATEMENT
IN VISUAL IMPAIRMENTS
(Myopia, Hyperopia, Myopic
Astigmatism and Hyperopic Astigmatism, Presbyopia)

LASER TREATMENT FOR MYOPIA
THE EXCIMER LASER
PRK
LASIK
iLASIK
LASEK
EPILASIK
RADIAL KERATOTOMY
SUBSTITUTION OF THE NATURAL CRYSTALLINE LENS
IMPLANT OF PHAKIC LENS

CATARACT SURGERY
   Phacoemulsification
GLAUCOMA
RETINAL DISEASES
STRABISMUS

PRK

PRK
PRK or Photo Refractive Keratectomy or corneal superficial photo-ablation can precisely treat conditions such as myopia, astigmatism, and hyperopia.

There are three main advantages associated with PRK treatment:
1) Simplicity for both surgeon and patient
2) Precision
3 )Reduced risks

"What happens when I decide to undergo an operation with PRK?"
(Excimer laser treatment of the corneal surface)

The patient lies under a microscope and anesthetic and antibiotic eyedrops are applied. After about 10-30 seconds when the anesthetic has acted, the superficial corneal layer on the surface (epithelium) is removed and the patient is told to stare at a blinking red light positioned above his eyes. The laser treatment is applied and will last up to 90 seconds.

After treatment, eye drops and a protective contact lens are applied, the contact lens will have to stay in place for a few days. The patient can go home immediately following the treatment.

The patient may experience sensitivity to light and may feel some pain in the following days, but the contact lens and the analgesic medication will help the patient lead an almost normal life in the postoperative period. Work activities and normal lifestyle can be partially resumed after 4-5 days and will be perfectly back to normal after approximately one week.

PRK laser treatment is used worldwide by ophthalmologists to correct myopia, hyperopia, and astigmatism.