Modern research on PRK recovery

For anyone seriously interested in how the eye recovers after any type of PRK surgery (PRK, LASEK, TransPRK) read this article

http://apps.elsevier.es/watermark/ctl_servlet?_f=10&pident_articulo=0&pident_usuario=0&pcontactid=&pident_revista=310&ty=0&accion=L&origen=optometry&web=www.journalofoptometry.org&lan=en&fichero=S1888-4296(14)00086-7.pdf&eop=1&early=si

I don't mean to put anyone off with this, but you will learn very interesting things, like that nobody really understands the healing process that follows eye laser surgery. That's why individual results always are a bit unpredictable. It for example takes up to 2 years for all the nerves to grow back in the eye after PRK and up to 5 years after LASIK. I guess this means that's how long you can have post surgery dry eyes in worst case. The research also shows that sometimes regression occurs also after 1 year post surgery - for example due to that the epithelium sometimes grows thicker after the PRK surgery then it was before. Anyhow, if you are really interested, start by reading the article above. The language is quite advanced so you might need google and Wikipedia as support while reading.