Can PRK be completed on one eye and LASIK on the other?

When considering vision correction surgery, you might come across two popular procedures: LASIK and PRK (Photorefractive Keratectomy). Both surgeries aim to correct refractive errors such as myopia, hyperopia, and astigmatism, but they differ in technique and recovery. A common question that arises is whether it’s possible to have PRK performed on one eye and LASIK on the other. Let’s explore this intriguing possibility and its implications.

Understanding LASIK and PRK

LASIK (Laser-Assisted In Situ Keratomileusis) involves creating a thin flap on the cornea, reshaping the underlying corneal tissue with a laser, and then repositioning the flap. This procedure is known for its quick recovery time and minimal discomfort.¹Probst, The Optimization of LASIK, International Ophthalmology Clinics 48(1):p 9-16, Winter 2008.

PRK (Photorefractive Keratectomy) involves removing the outer layer of the cornea (the epithelium) and reshaping the underlying tissue with a laser. The epithelium regenerates over a few days. PRK has a longer recovery time compared to LASIK and can be more uncomfortable initially, but it’s an excellent option for patients with thin corneas or certain other corneal conditions.² Sabau. et al. Efficacy, safety, and predictability of transepithelial… : Journal of Cataract & Refractive Surgery

Combining PRK and LASIK: Is it Possible?

Yes, it is technically possible to have PRK on one eye and LASIK on the other, but this approach is not common and should be carefully considered. Here are some scenarios where this might be considered:

• Different Corneal Conditions: If one eye has a thinner cornea or other corneal irregularities that make LASIK less suitable, PRK might be chosen for that eye. Meanwhile, if the other eye has a normal corneal thickness and shape, LASIK might be performed on that eye.
• Previous Surgeries: If a patient has had a previous eye surgery that affects one eye differently from the other, combining PRK and LASIK might be a viable solution.
• Patient Preference and Risk Factors: In some cases, a patient might prefer to experience both procedures, especially if they have concerns about the potential risks or outcomes associated with each surgery.

Pros and Cons of Combining PRK and LASIK

Pros:

• Customised Treatment: Allows for a tailored approach that addresses the specific needs and conditions of each eye.
• Flexibility: Provides an option for patients who might not be suitable candidates for LASIK on both eyes due to corneal thickness or other factors.

Cons:

• Different Recovery Times: PRK has a longer recovery period and may involve more discomfort compared to LASIK.³Ekktet Chansue et al, Efficacy, predictability and safety of small incision lenticule extraction (SMILE),2, Article number 14, Published: 31 August 2015 Patients will need to manage two different recovery processes simultaneously.
• Visual Adjustment: The brain might take some time to adjust to the different healing rates and visual experiences from each eye, which could cause temporary visual discomfort or imbalance.

What to Expect During Recovery

Recovery experiences will differ between the two procedures. LASIK patients typically see significant improvement in vision within 24-48 hours,⁴Saragoussi JJ, Djadi-Prat J, Lebuisson DA, et al. Quality of life after LASIK: part II. Quality of life and satisfaction of a population of patients treated with LASIK while PRK patients may take several days to weeks to achieve similar levels of clarity. During this time, it’s crucial to follow post-operative care instructions, use prescribed medications, and attend follow-up appointments to ensure proper healing and optimal outcomes.

While it’s possible to have PRK on one eye and LASIK on the other, this approach is uncommon and should be considered carefully. It’s essential to consult with an experienced ophthalmologist to evaluate your specific situation and determine the best treatment plan tailored to your needs.

If you’re considering vision correction surgery and want to explore your options, take our self-test today. This quick and easy test can help determine if you’re a good candidate for LASIK, PRK, or another vision correction procedure.