When it comes to laser eye surgery, two of the most commonly recommended procedures are PRK (Photorefractive Keratectomy) and LASIK (Laser-Assisted in Situ Keratomileusis). Both treatments are designed to correct vision problems such as nearsightedness, farsightedness, and astigmatism, helping people reduce or even eliminate the need for glasses or contact lenses. However, while the end goal is the same—clearer vision—the techniques, recovery, and suitability can differ significantly.
If you are considering vision correction, understanding the key differences between PRK vs LASIK will help you make an informed decision with your eye specialist.
What is PRK?
PRK (Photorefractive Keratectomy) is one of the earliest types of laser vision correction procedures. In PRK, the outer layer of the cornea (the epithelium) is removed, and then an excimer laser reshapes the cornea to correct vision.
Key Features of PRK:
- No corneal flap is created.
- The epithelium naturally regenerates in a few days.
- Healing time is longer compared to LASIK.
- Often recommended for patients with thin corneas or chronic dry eye.
PRK has been trusted for decades, and while the recovery is slower, the long-term visual outcomes are just as effective as LASIK.
What is LASIK?
LASIK (Laser-Assisted in Situ Keratomileusis) is the most popular laser vision correction procedure today. In LASIK, a thin flap is created on the cornea using either a microkeratome blade or a femtosecond laser. The underlying corneal tissue is then reshaped with an excimer laser, and the flap is repositioned.
Key Features of LASIK:
- Quick procedure (usually 15 minutes per eye).
- Fast recovery—most patients see improved vision within 24–48 hours.
- Minimal discomfort compared to PRK.
- Best suited for patients with healthy corneal thickness.
LASIK offers rapid results, making it appealing for people who want to return to work or daily activities quickly.
PRK vs LASIK: A Side-by-Side Comparison
| Factor | PRK | LASIK |
| Procedure | Surface epithelium removed; cornea reshaped with laser | Corneal flap created; underlying cornea reshaped |
| Recovery Time | Longer (several days to weeks) | Short (1–2 days for most patients) |
| Pain/Discomfort | Mild to moderate during healing | Minimal discomfort |
| Visual Results | Equal long-term results to LASIK | Equal long-term results to PRK |
| Best For | Thin corneas, active lifestyle, dry eyes | Normal corneal thickness, fast recovery needs |
| Risk Factors | Slightly higher risk of infection or haze during healing | Small risk of flap complications |
Which One is Right for You?
Deciding between PRK and LASIK isn’t about which procedure is “better,” but rather which one is best for your eyes and lifestyle.
- Choose PRK if:
- You have thin corneas.
- You suffer from chronic dry eye.
- You are an athlete or military professional (where corneal flap complications may be risky).
- Choose LASIK if:
- You want a faster recovery.
- You have adequate corneal thickness.
- You prefer minimal downtime and quick vision improvement.
Your eye surgeon will perform detailed tests to evaluate your corneal thickness, eye health, and lifestyle needs before recommending the most suitable procedure.
Final Thoughts
When comparing PRK vs LASIK, both procedures are safe, effective, and have excellent long-term success rates. The biggest difference lies in the recovery time and candidacy. While LASIK provides faster healing and minimal discomfort, PRK is often the better choice for patients with thinner corneas or a higher risk of dry eye.
Ultimately, the decision should be made in consultation with a trusted ophthalmologist who understands your unique vision needs. With either PRK or LASIK, you’re taking a step toward greater visual freedom, reduced dependence on glasses, and a clearer view of the world around you.
