Updated on  June 25, 2024
4 min read

PRK vs. LASIK: What’s the Difference?

6 sources cited
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Are you considering laser eye surgery to correct your vision? LASIK and PRK are two popular options, but understanding their differences is crucial for making an informed decision. 

Let’s break down the basics of both procedures, discuss their pros and cons, and provide essential information to help you choose the right one for you.

What’s the Difference Between PRK and LASIK?

LASIK (Laser-Assisted In Situ Keratomileusis) involves creating a thin flap in the cornea’s outer layer. This flap is lifted to expose the underlying layers, where a laser precisely reshapes the corneal tissue. 

Once the cornea is reshaped, light will start to focus better on the retina, resulting in clearer vision. On the other hand, PRK (Photorefractive Keratectomy) removes the top layer of the cornea (the epithelium) instead of creating a flap.

The laser then reshapes the cornea, just like in LASIK. However, with PRK, the epithelial layer heals naturally within a few days. PRK is also the original form of laser vision correction.

Which Procedure is Better For You?

A qualified ophthalmologist or an experienced refractive surgeon can determine which procedure is better for you. After a thorough eye exam, they’ll discuss your eye health, prescription, lifestyle, and visual needs, helping them assess which procedure is better for you.

However, there are some factors that you should consider when deciding between the two surgeries:

FactorsLASIKPRK
ProcedureInvolves creating a thin flap to reach the cornea.Involves removing the epithelium to reach the cornea.
Vision correctionSignificant vision improvement within a day or two.Vision improvement occurs within 5 days to a week
Recovery timeFull recovery typically occurs within a few months.Full recovery can take up to a month or longer.
SuitabilityBetter for people with thick corneas, moderate to high refractive errors, and participate in low-risk activities.Better for people with thin corneas, dry eye tendencies, higher prescriptions, and participate in high-risk activities like contact sports.


Pros and Cons of PRK and LASIK

Aside from understanding which procedure is better for you, there are also pros & cons that you might want to consider:

LASIK Pros and Cons

Pros:

  • Faster recovery
  • Minimal discomfort
  • Suitable for a wide range of prescriptions
  • Immediate results

Cons:

  • Potential flap-related complications
  • Potential for over or under-correction
  • Potential for infection
  • Not suitable for people with thin corneas, severe dry eyes, or at a high risk of eye injuries

PRK Pros and Cons

Pros:

  • No flap-related risks
  • Lower risk of long-term issues
  • Less risk of dry eyes
  • Better for people with high prescriptions or thin corneas

Cons:

  • Discomfort during recovery
  • Long recovery time
  • Potential for infection
  • More follow-up appointments

How To Choose a Surgeon?

Look for a surgeon who is board-certified by the American Board of Ophthalmology. This ensures that the surgeon has the necessary expertise for a successful procedure.

You should ask about their track record of successful PRK or LASIK procedures. Don’t be afraid to ask questions regarding the procedures, recovery times, risks, and benefits.

You should also discuss fees, payment options, and whether your insurance covers the procedure. Lastly, many practices offer additional consultations at no extra cost if you need time to make a decision.

How to Prepare for Laser Eye Surgery

First, you’ll need to consult with a surgeon who specializes in laser surgery. They’ll ask you about the extent of the refractive error, your overall health, and your medical history.

This information is crucial for determining which surgery is best for you. This is especially true if you’re taking medications or have conditions that affect the procedure’s outcome.

Other ways to get ready for LASIK or PRK include:

  • Stop wearing contacts for a week before the consultation
  • Avoid wearing makeup and lotions 24 hours before the surgery
  • Avoid using perfumes or scented products on the day of the surgery
  • Wear comfortable clothing
  • Arrange for someone to take you home
  • Shower before surgery
  • Hydrate and avoid alcohol

How To Manage Discomfort During Recovery

While LASIK generally offers faster healing, both procedures can involve some temporary discomfort.

Here are our recommendations to make recovery go as smoothly as possible:

  1. Follow your surgeon’s recommendations for pain medication.
  2. Get plenty of rest and avoid activities that strain your eyes while prioritizing sleep. 
  3. Wear sunglasses when you go out. Your surgeon may also provide temporary contact lenses or eye shields, especially for PRK.
  4. Smoking can affect the healing process, so if you’re a smoker, consider quitting. 
  5. Follow your surgeon’s detailed post-op instructions to ensure proper healing and attend all scheduled follow-up appointments.

Choosing between LASIK and PRK involves weighing various factors and understanding your individual needs. We strongly suggest consulting a qualified eye surgeon for a thorough evaluation and personalized recommendation.

By making an informed decision and following proper post-operative care, you can achieve improved vision and enjoy the benefits of laser eye surgery.

Updated on  June 25, 2024
6 sources cited
Updated on  June 25, 2024
  1. Moshirfar et al. “Laser In Situ Keratomileusis (LASIK)” Treasure Island (FL): StatPearls Publishing, 2023.
  2. Somani et al. “Photorefractive Keratectomy.” Treasure Island (FL): StatPearls Publishing, 2023.
  3. Chang et al. “Comparison of clinical outcomes of LASIK, Trans-PRK, and SMILE for correction of myopia.” Journal of the Chinese Medical Association, 2022.
  4. Wilson SE. “Biology of keratorefractive surgery- PRK, PTK, LASIK, SMILE, inlays and other refractive procedures.” Exp Eye Res, 2020.
  5. Boyd K. “What Is Photorefractive Keratectomy (PRK)?” American Academy of Ophthalmology, 2023.
  6. Boyd K. “LASIK — Laser Eye Surgery.” American Academy of Ophthalmology, 2024.
The information provided on VisionCenter.org should not be used in place of actual information provided by a doctor or a specialist.