Photorefractive Keratectomy

Touch-up techniques following SMILEResearch shows that enhancement rates after LASIK range from approximately 7.8% to 20%, with regression of approximately 1 diopter after 10 years.
Preparing your patient for PRKPhotorefractive keratectomy (PRK) was the original excimer laser procedure approved by the FDA—and is still a safe and effective treatment of refractive errors. PRK has the benefits of no-flap creation; therefore, there is no risk of flap complications.
Transepithelial surface ablationPRK has been an established method for laser vision correction for nearly 30 years, however, its popularity has reduced somewhat due to the advent of LASIK. With a recent renewed interest in surface ablation techniques some modifications have been made to alleviate disadvantages of the procedure. In this article, the authors highlight their clinical experience of TESA in myopic eyes with or without astigmatism.