Can PRK Be Done After LASIK?

the old way of enhancing a LASIK was to relift the old flap and relaser, or cut a new flap

both methods are fraught with problems, like epithelial ingrowth, or cutting into the old flap

i was the 1st surgeon in NYC to routinely enhance LASIKs by performing a LASEK on top of the old flap

and now this is becoming standard of care across the US

the reason is you eliminate the risk of epithelial ingrowth or flap wrinkles, which is significant

you also don't go deeper into the cornea, so don't weaken it further and cause KC or keratoconus

but please don't call an ASA or LASEK a PRK, or you'll think it hurts, takes a long time to recover, and carries a significant chance of haze or scarring. you really need an ASA or LASEK, and you also should have MMC, or your may very well scar. we use MMC, vit C, branded PredForte, oral steroids, and UV protection after our ASA enhancements of prior LASIKs, which is really necessary to avoid scarring

PRK is often performed if one needs an enhancement years after the original LASIK procedure.  If one has  a LASIK enhancement, the original flap is lifted and the edge is not precise. There is a risk of cell growth under the flap which may require additional surgeries.  To avoid this, many surgeons prefer to perform PRK if someone needs an enhancement years after LASIK.  PRK may also be indicated is if your residual cornea underneath the flap is not thick enough. This could predispose you to a progressive condition of the eye, known as ectasia.  

PRK is commonly performed as an enhancement procedure after LASIK and should provide you with a good result.  Be patient since the final results take a bit longer than LASIK.