PRK vs LASIK
LASIK or PRK, Which is Right for You?
LASIK (laser in-situkeratomileusis) and PRK (Photo-Refractive Keratectomy) are each forms of laser vision corrective surgeries. These procedures share many similarities:
- A laser is used to reshape the cornea
- Used to treat nearsightedness, farsightedness, and astigmatism
- People 18 years and older are eligible
- Allow people to eliminate or reduce dependence on glasses or contacts
The Difference Between LASIK and PRK
When LASIK is performed, a corneal flap is created so that the laser can shape the inner tissue of the cornea.
During a PRK procedure, the outer layer of the cornea, which is known as the epithelium is removed, so that the surface of the cornea may be reshaped.
PRK is often recommended for those who have large pupils and/or have corneas that are too thin to be eligible for LASIK surgery.
- LASIK has quicker healing time with restoration of 20/20 vision usually within 1 week.
- LASIK is more comfortable after the procedure.
- Some individuals with unusual corneal maps or thin corneas are not good candidates for LASIK.
- PRK is “more inclusive” so it can be done on people with normal thickness corneas as wells thin corneas.
- PRK is safer than LASIK for individuals with unusual corneal maps.
- PRK can be slighlty less comfortable with restoration of 20/20 vision with 2 to 4 weeks.
- Longterm visual results are identical between LASIK and PRK.
- PRK and LASIK use the same Excimer VISX S4 IR, that is why the results after 1 month of surgery are identical.