LASIK vs. PRK: Comparing Laser Eye Surgery Options for 2026

If you're considering laser eye surgery to reduce your dependence on glasses or contact lenses, you've likely heard about LASIK and PRK. Both are proven, FDA-approved procedures that use excimer lasers to reshape your cornea—the clear front surface of your eye—to correct refractive errors like myopia (nearsightedness), hyperopia (farsightedness), and astigmatism (blurred vision at all distances).

But which one is right for you? The answer depends on your eye anatomy, lifestyle, healing capacity, and personal preferences. This guide walks you through the key differences so you can have an informed conversation with your eye care provider.

How LASIK and PRK Work: The Core Difference

Both LASIK and PRK use the same laser technology to reshape your cornea, but they differ in how they access it.

LASIK (Laser-Assisted In Situ Keratomileusis) creates a thin, hinged flap on the corneal surface using either a microkeratome (a mechanical blade) or a femtosecond laser. Your surgeon lifts this flap, applies the excimer laser to reshape the underlying corneal tissue, and then replaces the flap. The flap acts as a natural bandage and heals quickly.

PRK (Photorefractive Keratectomy) removes the outermost layer of the cornea—called the epithelium—entirely rather than creating a flap. The excimer laser then reshapes the cornea underneath. A protective contact lens is placed on your eye to help the epithelium regrow over several days.

This single difference cascades into distinct advantages and trade-offs for recovery, candidacy, and outcomes.

Recovery Time and Visual Stability

One of the most significant differences between these procedures is how quickly you'll see clearly again.

LASIK recovery is notably faster. Because the corneal flap seals quickly, most patients notice improved vision within 24 hours. By one week, many people are comfortable returning to work and light activities. Full visual stability typically occurs within 3–6 months, though some patients experience minor fluctuations in the first few weeks.

PRK recovery is slower. Since the epithelium must regrow from scratch, vision improvement is gradual. Most patients see meaningful improvement by the end of the first week, but it can take 3–4 weeks to reach functional vision for daily tasks. Complete healing and visual stability may take 3–6 months or longer. During the first week, you'll experience more discomfort and light sensitivity than LASIK patients, and you'll need to use medicated eye drops frequently.

If you need rapid vision recovery for work or lifestyle reasons, LASIK typically offers a significant advantage.

Candidacy: Who Can Have Each Procedure?

Your corneal thickness and overall eye health determine which procedure is suitable for you.

LASIK requires adequate corneal thickness because your surgeon must create a flap and still leave enough corneal tissue underneath to be safely reshaped. If your corneas are thin, you may not be a candidate for LASIK. Additionally, LASIK is generally not recommended if you have:

• Severe dry eye syndrome
• Keratoconus (a progressive corneal thinning condition)
• Certain autoimmune diseases that impair healing
• Pregnancy or nursing (hormonal changes affect corneal shape)

PRK is often the better choice for thinner corneas because no flap is created, so more of your corneal tissue can be safely reshaped. PRK is also preferred if you have a history of eye trauma or play contact sports, since there's no flap to dislodge. However, PRK may not be ideal if you have severe dry eye, since the healing process requires robust tear production.

Your eye care provider will measure your corneal thickness and evaluate your tear film, refractive error, and overall ocular health to determine which procedure is safest and most effective for you.

Comfort During and After Surgery

During the procedure, both LASIK and PRK are painless. Your surgeon applies numbing drops, so you'll feel pressure but no pain. LASIK typically takes 10–15 minutes per eye; PRK takes about the same time.

After the procedure, the experience differs noticeably.

LASIK patients usually experience mild discomfort for a few hours—a scratchy or gritty sensation—but this resolves quickly as the flap seals. Most people are comfortable enough to resume normal activities within a day or two.

PRK patients experience more significant discomfort for 3–7 days. Your eye will feel scratchy, irritated, and sensitive to light. You'll need prescription eye drops to manage pain and promote healing. Many patients describe the first week as the most challenging part of the entire process. However, once healing progresses, discomfort resolves completely.

Long-Term Outcomes and Stability

Both procedures deliver excellent, stable long-term vision correction when performed by experienced surgeons on suitable candidates.

LASIK outcomes: Studies show that 90–95% of patients achieve 20/40 vision or better (the legal standard for driving without correction), and 65–75% achieve 20/20 vision or better. Results are stable within weeks to months.

PRK outcomes: Long-term visual outcomes are comparable to LASIK—90–95% achieve 20/40 or better, and similar percentages achieve 20/20 or better. The main difference is that it takes longer to reach that stability.

Both procedures carry small risks of undercorrection (needing glasses for distance vision) or overcorrection (becoming farsighted). Enhancement procedures can address these, though they're needed in only 5–10% of cases.

Complications and Safety

Both procedures are safe when performed on appropriate candidates by qualified surgeons. Serious complications are rare.

LASIK-specific risks include flap-related issues (wrinkles, displacement, or incomplete healing), though these are uncommon with modern techniques. Dry eye is more common after LASIK than PRK in the short term, though it usually resolves within 3–6 months.

PRK-specific risks include slower visual recovery and a longer healing period, which some patients find frustrating. Haze (a temporary cloudiness in the cornea) can occur but is rare with modern protocols and typically resolves.

Both procedures carry a small risk of infection, regression (gradual return of your original refractive error over months or years), and night vision symptoms like glare or halos around lights. These risks are similar between the two procedures.

Making Your Decision

Choose LASIK if:
- You have adequate corneal thickness
- You need rapid vision recovery
- You want minimal discomfort during healing
- You can tolerate a small risk of flap-related issues

Choose PRK if:
- You have thinner corneas
- You play contact sports or have a history of eye trauma
- You're willing to accept a longer recovery period for greater corneal stability
- You have severe dry eye (though this may limit both options)

Next Steps

The best way to determine which procedure is right for you is a comprehensive eye exam with a refractive surgeon. They'll measure your corneal thickness, assess your tear film, evaluate your refractive error, and discuss your lifestyle and expectations. Both LASIK and PRK offer life-changing vision correction—the key is choosing the one that aligns with your eyes and your life.

Your eye care provider can answer specific questions about your candidacy, expected outcomes, and what to expect during recovery. Don't hesitate to ask about their experience with both procedures and to request before-and-after photos of patients with similar prescriptions to yours.