If you’re tired of relying on glasses or contacts, laser vision correction may be your path to lasting clarity. At NJ Eye and Ear LASIK Center, led by renowned refractive surgeon Dr. Jimmy Hu, patients often wonder about the difference between LASIK and PRK. Here’s everything you need to know to make an informed decision.
Definitions
LASIK
LASIK is a laser eye surgery that reshapes the cornea to correct refractive errors such as nearsightedness, farsightedness, and astigmatism. During the procedure, a thin flap is created in the cornea using a femtosecond laser. This flap is lifted, the underlying corneal tissue is reshaped with an excimer laser, and then the flap is repositioned to heal naturally.
PRK
PRK is another form of laser vision correction that treats refractive errors by reshaping the cornea. Unlike LASIK, PRK does not involve the creation of a corneal flap. Instead, the outer layer of the cornea (epithelium) is removed entirely before the laser reshaping is performed. A soft contact lens is placed on the eye to aid healing as the epithelium naturally regenerates.
Similarities
Although LASIK and PRK differ in technique, they share many fundamental similarities that make them both safe and effective options for vision correction.
- Both correct common vision problems
Both procedures are done to treat myopia (nearsightedness), hyperopia (farsightedness), and astigmatism by reshaping the cornea so that light properly focuses on the retina. - Both use advanced laser technology
PRK and LASIK utilize the same type of excimer laser to sculpt the corneal tissue. We offer Contoura® Vision, a topography-guided system that enhances outcomes for PRK and LASIK. - Both offer long-term visual improvement
When performed by a skilled surgeon, both LASIK and PRK deliver excellent long-term results. Most patients achieve 20/20 vision or better and no longer require glasses or contacts. - Both are outpatient procedures
LASIK and PRK are performed in-office and typically take less than 30 minutes. You’ll go home the same day and begin your recovery with post-op instructions and scheduled follow-ups.
Differences
Despite their shared goals, there are important differences between LASIK and PRK that may make one procedure a better fit for you. Understanding these distinctions is crucial.
Method of Accessing the Cornea
- LASIK creates a thin flap on the cornea, which is lifted and later repositioned.
- PRK removes the surface layer of the cornea (epithelium) entirely, without creating a flap.
Healing and Recovery Time
- LASIK offers a quicker recovery. Most patients notice improved vision within 24–48 hours, with full stabilization in a few weeks.
- PRK has a longer recovery period. Vision gradually improves over several days to weeks, with full results appearing after three to six months.
Post-operative Discomfort
- LASIK typically involves minimal post-op discomfort, as the flap acts as a natural bandage and protects the eye.
- PRK may involve more discomfort during the early healing phase, such as soreness and light sensitivity, since the eye must regrow the epithelium.
Risk of Flap-Related Complications
- LASIK carries a slight risk of flap displacement in the early healing phase, though complications are rare.
- PRK eliminates flap risks entirely, making it preferable for patients involved in contact sports, high-impact activities, or professions with eye trauma risk.
Suitability for Thin or Irregular Corneas
- LASIK requires a certain corneal thickness to safely create and reposition the flap.
- PRK is often the better choice for patients with thinner corneas or corneal surface irregularities, as it doesn’t rely on flap creation.
Schedule Your Consultation
Dr. Jimmy Hu is a board-certified ophthalmologist and fellowship-trained refractive surgeon from Wilmer Eye Institute at Johns Hopkins Hospital. With extensive expertise in LASIK and PRK, he is dedicated to delivering exceptional outcomes tailored to your vision needs. Whether you’re exploring your options or ready to move forward, please schedule your personalized consultation today and take the first step toward clearer vision.
