LASIK vs. LASEK: Key Differences in Vision Correction

At the forefront of vision correction technology, LASIK and LASEK stand as two prominent surgical procedures that have helped millions achieve clearer vision. While both procedures aim to correct refractive errors, such as nearsightedness, farsightedness and astigmatism, they differ significantly in their approach, recovery time, and suitability for different patients.

We aim to provide a detailed comparison to empower you to discuss the best option for your unique needs with your ophthalmologist.

Understanding LASIK and LASEK: The Fundamental Differences

LASIK (Laser-Assisted In Situ Keratomileusis) and LASEK (Laser-Assisted Sub-Epithelial Keratectomy) represent different approaches to corneal reshaping. LASIK involves creating a corneal flap, while LASEK works by removing and preserving the epithelial layer. This fundamental difference impacts everything from the surgical process to recovery outcomes.

The LASIK Procedure

In LASIK surgery, ophthalmologists create a thin corneal flap using either a microkeratome or a femtosecond laser. This flap is gently lifted, allowing the surgeon to reshape the underlying corneal tissue using an excimer laser. Following the reshaping, the flap is replaced, acting as a natural bandage to promote rapid healing.

The LASEK Procedure

LASEK takes a different approach by treating the epithelium (the outer layer of the cornea) with either a diluted alcohol solution to loosen it (LASEK) or a plastic blade (Epi- LASIK). This layer is carefully preserved and moved aside while the surgeon reshapes the underlying corneal tissue. The epithelial layer is then repositioned and secured with a bandage contact lens to facilitate healing.

Comparing Candidacy Requirements

Ideal LASIK Candidates

The best candidates for LASIK typically have:

• Corneal thickness of at least 550 microns
• No history of eye disease or severe dry eye
• Stable vision prescription for at least one year
• Good overall eye health
• Age 18 or older

Ideal LASEK Candidates

LASEK may be more suitable for individuals with:

• Thinner corneas (below 550 microns)
• Active lifestyles with risk of eye trauma
• Profession-related restrictions on LASIK
• Tendency toward dry eye syndrome
• Higher risk of corneal flap complications

Long-Term Outcomes and Success Rates

Research indicates comparable long-term success rates between LASIK and LASEK, where

• 96% of LASIK patients achieve 20/20 vision or better
• 94% of LASEK patients achieve 20/20 vision or better
• Both procedures show similar stability after one year
• Patient satisfaction rates exceed 95% for both procedures

Financial Considerations

The cost of LASIK and LASEK can vary depending on your location, the technology used, and the surgeon’s experience. However, they are relatively comparable where the ave

rage cost of LASEK eye surgery is about the same as LASIK, ranging from $3,000 to $6,000 for both eyes. While neither procedure is considered medically necessary, health insurance typically doesn’t cover it. However, you may find providers who offer discounts or have a relationship with a specific health plan that offers the procedure at a reduced cost.

Both LASIK and LASEK are effective procedures for correcting refractive errors. The “best” choice depends on your individual circumstances, including your corneal thickness, eye health, medical health, and lifestyle.

By partnering with your optometrist or ophthalmologist, and having a comprehensive eye exam, it will allow you to make an informed decision that empowers you to achieve clearer vision and improve your quality of life.

Take the next step and schedule a FREE consultation at a LasikPlus center near you to determine candidacy and options.

Sources

CareCredit. (Paretts, S, 2023). Lasek vs. Lasik: Which One Is Right for You? Retrieved from https://www.carecredit.com/well-u/health-wellness/lasik-vs-lasek/

Cochrane Library. (Kuryan, J, Chuck, R, Cheema, A. 2017). Laser‐assisted subepithelial keratectomy (LASEK) versus laser‐assisted in‐situ keratomileusis (LASIK) for correcting myopia. Retrieved from https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD011080.pub2/full

Mayo Clinic. (2023). LASIK Eye Surgery. Retrieved from https://www.mayoclinic.org/tests-procedures/lasik-eye-surgery/about/pac-20384774

National Library of Medicine. (n.d.).  LASEK results. Retrieved from  https://pubmed.ncbi.nlm.nih.gov/12683256/

WebMD. (Seltman, W, 2024).  LASEK Eye Surgery. Retrieved from https://www.webmd.com/eye-health/eye-health-lasek-laser-eye-surgery

Disclaimer: This information is for general knowledge and informational purposes only and does not constitute medical advice. Consult with a qualified healthcare professional for diagnosis and treatment of any medical conditions.