A Guide to Laser Vision Correction by Robert K. Maloney, M.D., Ernest W. Kornmehl, M.D., and Jonathan M. Davidorf, M.D.
PRK
As mentioned earlier in this book, PRK was introduced in 1987 and was approved by the U.S. FDA in 1995. Instead of a microkeratome being used to create a corneal flap, with PRK the surgeon uses the laser to accurately sculpt the cornea one microscopic layer at a time. As awareness of LASIK grew, PRK became less popular, because of the increased comfort and more rapid recovery of vision that LASIK offered.
In the last decade, a newer generation of excimer lasers, along with refined techniques, have minimized the risks of PRK. And patients today have an easier recovery. As a result, PRK has become a viable option for a variety of patients whose needs are not met by LASIK.
