RCES, Recurrent corneal erosion
syndrome is a benign disease afffecting the epithelial layer of the cornea and it is characterized by recurrent erosions of the corenal epithelium resulting in corneal epithlial defects causing symptoms like pain, redness
The treatment is mainly by lubricating eye drops, gels and eye ointments
. If the symptoms persist PTK. phototherapeutic keratectomy is done to remove the layer of the epithelium and to allow the formation of new layer of epithelium.
Since you have already undegone the PTK, next treatment is to prevent recurrence of RCES by taking precautions like avoiding minor trauma, forceful rubbing of the eyelids and using lubricating eye drops or eye ointments regularly.