PTK eliminates superficial irregular tissue within the cornea utilizing an excimer laser. It is usually utilized for corneal scars, area irregularities or recurrent erosions. The complete LASIK course of action usually requires about quarter-hour per eye. Most of this time requires planning and positioning instead of the laser software alone. https://thesocialroi.com/story10760849/5-simple-statements-about-lasik-surgery-explained