Laser Vision

What Is the Difference Between PTK and PRK Eye Surgery?

Eye Surgery

When researching laser eye surgery, many people ask, what is the difference between PTK and PRK eye surgery? While both procedures use an excimer laser and treat the surface of the cornea, they are designed for different purposes.

Phototherapeutic Keratectomy (PTK) is designed to target more superficial corneal disorders and is a relatively quick procedure designed to improve vision. Photorefractive Keratectomy (PRK) is performed to improve the shape of the cornea.

Understanding the key differences can help you choose the most appropriate treatment for your vision and eye health.

To get in touch with us at Laser Vision to ask about treatments, click here or call 0808 304 5174 today.

 

What is PTK eye surgery?

Phototherapeutic Keratectomy (PTK) is a laser treatment which treats conditions such as:

  • Corneal scars
  • Superficial scars
  • Corneal opacities
  • Corneal dystrophies
  • Recurrent corneal erosion
  • Corneal haze

The PTK procedure removes damaged corneal tissue from the corneal surface, helping improve comfort and, in many cases, vision. It’s a relatively simple procedure for a talented eye surgeon, although it may feel scary at first.

What is PRK eye surgery?

Photorefractive Keratectomy (PRK) aims to reshape your cornea to achieve a more significant level of vision correction.

Unlike PTK, PRK eye surgery treats common refractive errors, including:

  • Short-sightedness
  • Long-sightedness
  • Astigmatism

By reshaping the cornea, PRK helps light rays properly focus on the retina, providing clearer vision and reducing dependence on glasses or contact lenses. For such a laser vision correction procedure, your eye surgeon will need to do some tests to make sure the treatment is right for you.

How are PTK and PRK performed?

The key point to both the PRK and PTK treatments is that they are both relatively quick procedures performed using a numbing cream.

In addition, it takes around 5 minutes or less to treat per eye; patients can expect long-term results and a relatively quick recovery.

The similarities do not end there, as the treatment itself is performed in a practically identical manner, with the only difference being the aim of the eye surgery.

PTK is designed to remove the glassy outer layer from your cornea, while PRK aims to reshape your cornea.

Unlike LASIK or LASIK-S, neither PTK nor PRK involves creating a corneal flap, making them suitable for some patients with thinner corneas.

Recovery after PTK and PRK

As previously mentioned, both PTK and PRK have a relatively quick healing period, which may surprise most patients. However, there are some minor discomforts you may have to endure, which include:

  • Blurry vision
  • Light sensitivity
  • Mild discomfort
  • Temporary reliance on preservative-free artificial tears
  • Regular eye drops

The initial downtime for both treatments is around 3 days, but full visual recovery from PRK surgery often takes several weeks.

PTK recovery is a little more unclear at first because it depends on the underlying eye condition being treated rather than vision correction alone.

The good thing is that a rough timeline for recovery can be explained in more detail during your initial consultation before any treatment begins.

Which procedure is right for you?

Deciding on which treatment procedure is right for you is a little more complex when it concerns your eye health. The best treatment depends on your diagnosis.

So, when you go through your consultation, your eye surgeon will determine whether to opt for PTK or PRK.

During your consultation, your surgeon will assess:

  • Corneal thickness
  • Overall health
  • Vision problems
  • Eye health
  • Refractive errors
  • Medical history

They will then recommend the most appropriate refractive surgery option for your needs. Ultimately, as the expert, your eye surgeon will opt for the right laser eye procedure designed to help your case, and explain the healing process that goes with it.

Book a consultation at Laser Vision.

If you’re unsure whether PTK or PRK is right for you, our experienced team at Laser Vision can make your life a lot easier by guiding you to the right option.

We will explain both procedures in detail, answer your questions and recommend the most suitable laser eye procedure based on your individual eye health, vision goals and lifestyle.

What’s more important is that if neither treatment is suitable for your condition, other refractive surgery methods or alternatives can be suggested to correct common vision problems.

Click here or call 0808 304 5174 today to speak to us at Laser Vision, and visit our state-of-the-art Prema complex in Portsmouth, where we can do all the necessary tests you need.

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Colin D.
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I was initially going to write a brief review, but thought it might be beneficial to anyone considering using LaserVision Prema, if I gave a more detailed account of my personal experience? After 10 years of my eyesight gradually deteriorating due to age, wearing glasses became a necessity for all distances, which constantly frustrated me after having had perfect vision for most of my life. I'd heard of lens replacement surgery, so looked deeper into it and due to their positive reviews, settled on LaserVision Prema for an initial consultation to discuss options. From the outset, the experience has been amazing. The staff are friendly, making patients feel very welcome and at ease, there's no pressure to agree to have anything done and any concerns you have will be addressed, including any negative points you may need to consider? During the initial consultation, my eyes were thoroughly examined using a variety of methods and equipment, which gave me confidence the results would be accurate. Following this, I met with Rakesh, who performs the operations, to discuss the different options available based on the results. Fortunately, my eyes were suitable for any of the procedures. Rakesh took the time to make sure I knew exactly what the pros and cons of each lens type were, he also ensured I was aware that although my vision would likely be much better, nothing available at the present time will give me perfect sight back? In the end, I decided to opt for lenses which would improve vision at all distances. On the day of the operation, staff do everything to relax patients, and nothing feels rushed. The whole experience was easy and completely painless, taking approximately 15-20 minutes per eye. Throughout the procedure Rakesh will ensure you're fine. Although you can see enough to walk immediately afterwards, your vision is initially very much reduced, so you won't be able to drive. I'd booked a room in the Travelodge opposite in case I wasn't able to travel after the operation and walked to it without assistance. LaserVision Prema provide you with various eye drops, required to be used several times a day for a couple of months to ensure your eyes properly heal. I used these as prescribed and didn't experience any problems. As the day went on my vision started slowly improving, to the point where I could watch a film on my iPad, without it being too blurry. Later in the evening, I looked out the window and was immediately aware of a massive improvement to my distance vision, being able to see things clearly at distances I previously would have needed glasses for. The only discomfort in the entire process was in the evening after I'd had the operation, my eyes felt like they were gritty and began to water for two or three hours. Although it was quite annoying and noticeable, it was manageable. After a few hours my eyes stopped watering and the grittiness was at the point where I no longer thought about it. Rakesh called me late in the evening, in his own time, to ask how I was getting on and make sure I was ok? This is the level of care LaserVision provide. The morning after the operation, the improvement to my near, intermediate and far distance sight was incredible. This was done in December 2025 and since then, I haven't needed to ever wear glasses again for anything, at any distance - I don't even own a pair now! To give an idea, I can read unaided N4 size words on a reading chart. As Rakesh pointed out, it hasn't given me totally pin sharp eyesight back, but it really isn't far off and seven months later, I'm still amazed at what LaserVision Prema was able to achieve. The operation itself isn't the end of the process, you will also receive an aftercare service of follow up visits to check everything is as expected and to ensure you are happy with your progress. As mentioned, the results in how much your eyesight can be improved differs from person to person. This review is purely to highlight how impressed I am with LaserVision Prema, their professionalism and level of care provided to patients.
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Fab Smith profile picture
Fab Smith
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Tim Ford literally gave me my vision back — life-changing care! For years I’ve struggled with contact lenses, feeling frustrated and limited by my keratoconus. But from the moment I met Tim Ford, everything changed. He didn’t rush; he truly listened to my challenges, understood exactly what I’d been going through, and carefully created a personalised plan that finally works for me. His expertise, patience, and kindness are incredible — he didn’t just treat my eyes, he cared about restoring my quality of life. I can’t believe the difference; it feels like he has truly given me my vision back. If you’re looking for an optometrist who goes above and beyond, especially for complex eye health, Tim is absolutely amazing. Thank you so much for everything! 🙏✨
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Nigel Steward
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Excellent professional care.
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Darren Toomer
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I have been delighted with the level of care provided by Rakesh and his team during my eye lens replacement surgery. The results of the surgery have been nothing less than life-changing. I shall always remain extremely grateful to the gift of 20:20 sight given to me.
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Peter Dixon profile picture
Peter Dixon
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Excellent, could not have asked for more.
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ros summers profile picture
ros summers
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Excellent service, very friendly approachable staff. My eye condition was identified quickly & medication prescribed. So pleased I decided to book my initial appointment. Highly recommended
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Janey Power profile picture
Janey Power
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Absolutely incredible service so far. The most attentive staff that greet me by name and make me feel so valued. My Ophthalmic Surgeon, Mr Rakesh Jayaswal has made everything understandable and couldn’t be a nicer, more relatable gentleman than he is. The professionalism from all staff especially Vicky, Tracey, Jane and Rakesh, has made me feel so secure and I know I’m in safe hands. The lens replacement surgery was a bit strange but painless and over quickly. Now just looking forward to my recovery. My sincere thanks to all involved . It is now 5 months post surgery and I cannot believe the quality of the aftercare that I have received from Vicky and Rakesh. My biggest concern was that after paying for surgery, I would just be left then to get on with things but they have seen me regularly and given me the most incredible service. Nothing was too much trouble and they have checked and checked my vision every step of the way. I have been made to feel like an important guest and their warmth and concern has made me feel so special. For anyone considering Prema, please take my word for the most incredible experience and I can read, see and do jigsaws with NO GLASSES. Words are not enough to thank them for what they have given me. 5 stars are not enough!!!
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Alison Philp profile picture
Alison Philp
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Caring, empathetic staff with a lovely atmosphere in the clinic. The time taken to make sure I was happy with the treatment was never rushed & the whole procedure was so much more relaxed than I would have thought possible. Amazing.
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Robert James profile picture
Robert James
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Very well looked after by Mr Tapper at his Nuffield Woking clinic today, following a capsulotomy by him 6 weeks ago. I now have greatly improved vision in the affected eye. The LaserVision support team are also excellent. I would not hesitate to recommend this clinic to others.
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Lynette Marshall
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If you are nervous about eye surgery, I highly recommend LaserVision Prema in Portsmouth. They looked after me so well from start to finish. Mr. Rakesh Jayaswal is a true gentleman whose calm manner and precision made me feel completely comfortable. The team is professional, kind, and happy to answer any questions. A five-star experience!
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