Table of Contents
How many years does PRK surgery last?
How long will the correction last? The results of your PRK do not diminish over time. Once your eyes have stabilized, usually in three to six months, your vision correction is permanent. This doesn’t mean, however, that your vision won’t change.
How many times can you have PRK?
If you choose to have a second PRK procedure, there’s nothing to worry about. Subsequent/follow-up surgery is usually the same as the original procedure in that the entire epithelium will be removed to allow access to the underlying cornea in order to reshape it.
Who is PRK good for?
PRK is a type of refractive surgery that is used by our Latham eye doctors to correct myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. This type of surgery was developed before LASIK surgery and for some patients it is the better choice.
Is surface ablation a viable alternative to PRK?
Although LASIK procedures outnumber PRK and its variants, surface ablation has returned as an attractive alternative in specific indications such as very low corrections and thin corneas.
What is the difference between PRK (PRK) and LASIK?
PRK has been the subject of extensive investigations, with ongoing improvements in hardware and technique. Laser in situ keratomileusis (LASIK) uses PRK technology but performs the procedure under a lamellar flap formed with a microkeratome or femtosecond laser.
Should LASIK be avoided for standard Corneal Refractive Surgery?
Consequently, some surgeons advocated a complete return to surface ablation and that LASIK should be avoided altogether for standard corneal refractive surgery. Studies have shown an increase in aberration levels after LASIK.
What is the minimum amount of residual stromal thickness required for LASIK?
The cornea must have at least 250 µ or 50\% of the original thickness (whichever is greater) of the residual stromal bed under a LASIK flap. If the flap thickness plus tissue ablation depth are calculated to leave inadequate residual stromal thickness, LASIK is contraindicated and surface ablation is preferable.