Photorefractive Keratectomy (PRK Surgery) for Clear Vision Without Glasses
- The Straits Eye Centre
- Sep 19
- 4 min read
What Is PRK?
Photorefractive Keratectomy (PRK) is one of the earliest and most established laser vision correction procedures. It reshapes the cornea using an excimer laser, improving how light is focused onto the retina.
Unlike LASIK, PRK does not involve creating a corneal flap. Instead, the thin surface layer (epithelium) is gently removed and regenerates naturally during healing. This makes PRK suitable for patients with thin corneas or those not eligible for LASIK or SMILE.
Why Patients Consider PRK
No corneal flap: Suitable for thin corneas or those with irregular surfaces.
Proven track record: PRK has been safely performed worldwide for decades.
Stable long-term results: Especially effective for mild to moderate myopia, hyperopia, and astigmatism.
Alternative for active individuals: No flap-related complications, making it safer for contact sports or physically demanding jobs.
Who Is Suitable for PRK?
You may be a candidate if you:
Are 18 years or older
Have stable myopia, hyperopia, or astigmatism
Have thin or irregular corneas unsuitable for LASIK
Prefer a flap-free alternative to LASIK or SMILE
Do not have active eye disease, keratoconus, or severe dry eye
The PRK Procedure: What to Expect
Assessment: Detailed eye scans and measurements confirm eligibility.
Surface Preparation: The corneal epithelium is removed to expose the treatment area.
Laser Reshaping: An excimer laser reshapes the cornea to correct refractive error.
Protective Lens: A bandage contact lens is placed to protect the eye during healing.
Duration: Each eye typically takes 10–15 minutes.
Recovery After PRK
Recovery is slower than LASIK or SMILE, as the epithelium takes several days to heal. Patients usually:
Experience discomfort or blurriness for the first 3–5 days
Notice clearer vision within 1–2 weeks
Achieve stable results after 1–3 months
Require regular follow-up to ensure smooth healing
Benefits of PRK Compared to Other Surgeries
PRK vs LASIK: PRK avoids flap-related risks but has longer recovery.
PRK vs SMILE: PRK is suitable for patients with thinner corneas or irregular surfaces.
PRK vs ICL: PRK does not involve intraocular surgery, making it less invasive in that regard.
Frequently Asked Questions
1. Is PRK painful?
Patients may experience discomfort, tearing, and light sensitivity during the first few days, but pain is managed with medication and protective lenses.
2. How long does recovery take?
Functional vision usually returns within 1–2 weeks, with full stabilisation over 1–3 months.
3. Is PRK safer than LASIK?
PRK eliminates flap-related risks, but recovery is longer. Both are safe when performed by experienced specialists.
4. Who should not undergo PRK?
Patients with keratoconus, unstable prescriptions, severe dry eye, or uncontrolled medical conditions are not suitable.
5. Can PRK correct high myopia?
PRK is most effective for mild to moderate prescriptions. Very high myopia may require ICL or LASIK instead.
6. Is PRK covered by Medisave or insurance?
No. PRK, like other refractive surgeries, is considered elective and not claimable under Medisave or insurance in Singapore.
7. How long do PRK results last?
Results are long-lasting. However, natural age-related changes like presbyopia or cataract can still affect vision later.
8. Is PRK still relevant compared to newer surgeries?
Yes. PRK remains valuable for patients unsuitable for LASIK or SMILE, offering safe and effective vision correction.
Meet Our Specialists
At The Straits Eye Centre, your vision care is in the hands of a dedicated team of experienced ophthalmologists. Each of our doctors brings unique expertise and a shared commitment to delivering thorough, patient-focused care for all ages. Whether you need advanced cataract surgery, paediatric eye management, or treatment for complex eye conditions, our team works together to provide the same attentive care we would want for our own families.
Dr Jayant V Iyer
Senior Consultant & Medical Director
Special interest: Cataract, Glaucoma, General Ophthalmology With specialist training in Singapore and the UK, Dr Jayant V Iyer has served as Head of Department at Sengkang General Hospital and Senior Consultant at Tan Tock Seng Hospital. He is committed to delivering safe, precise surgical care with clear communication at every stage.
Dr Jason Lee
Senior Consultant & Medical Director
Special interest: Oculoplastics, General Ophthalmology, Myopia, Cataract, Diabetic Retinopathy Dr Jason Lee has extensive training in eyelid, orbital, and tear system surgery, with fellowships completed in Taiwan and China. Previously a Senior Consultant at Khoo Teck Puat Hospital, he co-founded The Vision Mission, a non-profit bringing sustainable eye care to communities in Asia.
Cost, Medisave, and Insurance
Many procedures at The Straits Eye Centre are eligible for Medisave claims under MOH guidelines, and certain insurance plans may cover part or all of your treatment costs. Our patient care team will guide you through eligibility, claim limits, and paperwork, so you can focus on your recovery. For more details, refer to our Medisave & Insurance Guide.
Secure Your Appointment at The Straits Eye Centre
at Parkway East Hospital
Your vision health deserves timely and professional attention. Book your appointment now at our Parkway East Hospital clinic and take the first step towards clearer, healthier sight.
