StreamLight: The latest-generation Transepithelial PRK

PRK (Photorefractive keratectomty) is a laser vision correction technique. It helps correct short-sightedness , long-sightedness and astigmatism.

During PRK, the thin superficial layer of the cornea (the epithelium) is removed. Then the surface of the corneal tissue is sculpted directly with an excimer laser. The epithelium will then regrow by itself within a few days. In a “classic” PRK, the epithelium is removed mechanically and the excimer laser subsequently applied. “StreamLight”, a new transepithelial PRK technique that uses the excimer laser to remove the epithelium without touching the eye.

It is therefore the same excimer laser that will remove the epithelium and reshape the corneal surface to correct the visual defect in one single optimized WaveLight procedure. The alignment between the size and location of the PTK treatment area with the PRK ablation profile is automatic. There is thus no contact with the eye being treated.