Parameters to have PRK are similar to those for LASIK surgery. Patients with marginally thin corneas may be more suitable for surgery. Patients with dry eyes may also be better suited to have the PRK procedure.
The procedure works by removing the surface cell layer of the cornea before applying a MEL90 excimer laser to reshape the cornea. A contact lens is then placed on the corneal surface to allow the corneal epithelium to regrow over the ensuing days.
The benefits of PRK include:
- Quick surgical procedure
- No corneal tissue flap is created
- It can be repeated
- Good for thinner cornea and dry eye conditions
Any surgical or invasive procedure carries risks. Before proceeding, we will discuss these risks with you to ensure you are well informed and confident with your decision.
If you are unsuitable for PRK surgery to correct your condition, we can perform trans-epithelial PRK. This is an excellent, accurate way to treat refractive error without the need to remove the epithelium manually.
Step 1: We remove the epithelial layers of the eye
Step 2: We apply the target light laser
Step 3: We apply a drug called Mitomycin-c to reduce the likelihood of developing corneal haze
Step 4: We apply a bandage contact lens
Step 5: We prescribe aftercare to ease possible discomfort i.e. eye drops
Most people see 20/20 or better after PRK, as clearly as they would after LASIK.