When it comes to laser vision correction, LASIK is often the star of the show. But there’s another safe, effective option you should know about—PRK (Photorefractive Keratectomy). At WashU Medicine LASIK Surgery Center, we’re not here to upsell one procedure over another. We’re here to help you choose the safest and most successful option for your eyes.
In the video below, Dr. Stephen Wexler, our Medical Director, explains when and why PRK may be recommended instead of LASIK—especially for patients with thinner corneas or other unique eye conditions.
“If it’s safer, better to go with safer.”
Dr. Stephen Wexler, WashU Medicine LASIK Surgery Center
Stephen A. Wexler, MD
Professor of Ophthalmology and Visual Sciences
- Email: swexler@nospam.wustl.edu
Medical Director WashU Medicine LASIK Surgery Center
What Is PRK?
PRK was the first FDA-approved laser eye surgery and has been safely used for decades. Unlike LASIK, which involves creating a flap in the cornea, PRK gently removes the outer layer of the cornea before reshaping it with a laser to correct your vision.
Because there’s no flap, PRK is often recommended for patients with:
- Thin or irregular corneas
- Active lifestyles or contact sports (less risk of flap injury)
- History of dry eyes
PRK vs. LASIK: What’s the Difference?
| Feature | PRK | LASIK |
|---|---|---|
| Flap created? | No flap | Yes, flap created |
| Initial healing time | 3–5 days for outer cornea | 1–2 days for vision improvement |
| Visual recovery | Slower (weeks for full clarity) | Faster (often within 24–48 hrs) |
| Long-term results | 20/20 success rate is equal to LASIK | Identical to PRK long-term |
According to research: Studies show PRK and LASIK both achieve 20/20 vision in over 95% of patients, depending on individual eye anatomy and pre-surgery prescription. (View study on PubMed)
Is PRK a “Lesser” Procedure?
Not at all. In fact, PRK is just as effective as LASIK when it comes to long-term vision correction. While LASIK delivers faster visual results in the first week, PRK catches up within three to six months—with identical outcomes.
And most importantly, PRK might be the safest option for you. As Dr. Wexler says:
“If it’s safer, better to go with safer.”
Watch the Full Video with Dr. Wexler Below
Ready to See Clearly and Safely?
If you’re curious whether LASIK or PRK is right for your eyes, we’d love to meet you. Schedule a free consultation today and let’s create a custom plan for your best vision—backed by research and led by the region’s top specialists.