The original surface laser correction: how PRK reshapes the cornea, why some patients still prefer it, and what recovery demands.
Written by our medical board, reviewed quarterlyUpdated 21 January 19708 min read
Who PRK is for
PRK, or photorefractive keratectomy, was the first laser vision correction technique and remains a reliable, well-proven option. It corrects short-sightedness, long-sightedness and astigmatism by reshaping the surface of the cornea, with no flap created at any point. That makes it a strong choice for people with thinner corneas, slightly irregular surfaces, or jobs and sports where a flap would be a liability.
Many patients travel for PRK to access modern lasers at a lower price, including at established clinics in Turkey and other hubs. The procedure itself is quick, but the appeal of PRK is its safety profile rather than its convenience, because the recovery is the slowest of the common laser options.
How PRK works compared with LASEK and LASIK
In PRK the surgeon removes the thin outer layer of the cornea, the epithelium, completely, then uses an excimer laser to reshape the exposed surface. A bandage contact lens is placed, and over the following days the epithelium grows back across the treated area.
The difference from LASEK is subtle: LASEK preserves and repositions the epithelial layer rather than removing it, while PRK discards it and lets it regenerate. Both are surface procedures with no flap, which is the fundamental contrast with LASIK. Because the surface must regrow, PRK and LASEK recover more slowly than LASIK or SMILE, but they preserve more corneal strength and carry no flap-related risks, which is exactly why they are chosen for thinner corneas.
What PRK costs and what is included
PRK abroad typically falls in the same broad band as other laser correction, roughly 1,000 to 2,000 euro for both eyes, depending on the laser platform and how much the treatment is customised. The technology overlaps heavily with LASIK, so the price is usually similar rather than dramatically lower.
A proper package should include the assessment, the procedure, the bandage contact lenses, post-operative drops and the follow-up visits that the longer healing period requires. Given that recovery is slower, confirm that multiple follow-ups are covered and ask what happens if vision is slow to stabilise or an enhancement is needed.
Choosing a clinic for PRK
Look for a board-certified ophthalmologist at an accredited centre with JCI, TEMOS or ISO recognition who regularly performs surface laser procedures. Ask why PRK is being recommended in your case rather than LASIK or SMILE; the usual reasons are corneal thickness, surface findings on screening, or your occupation.
Because PRK has the most demanding early recovery of the laser options, plan aftercare carefully. Understand the drop schedule, when the bandage lens is removed, and how your healing will be checked. Arrange an eye doctor at home to follow up, and confirm before you travel who manages slow healing, haze or any complication.
Recovery and timeline
PRK has the slowest initial recovery of the common laser procedures. The first three to five days are uncomfortable, with soreness, watering and strong light sensitivity while the epithelium regrows under a bandage lens. Vision is blurry and fluctuates during this time.
Most people can return to non-demanding activity after about a week, once the bandage lens is removed, but vision keeps improving over several weeks and the final result can take one to three months to settle fully. You will use lubricating drops for an extended period and should protect your eyes from sun and dust. Plan a longer stay near the clinic than you would for LASIK so the surface healing can be monitored before you fly.
Risks and what if something goes wrong
PRK is one of the safest laser procedures because it has no flap and preserves corneal strength, which is why it has such a long track record. Its main downsides are the uncomfortable, slower recovery and a small risk of corneal haze, a temporary surface cloudiness that surgeons reduce with medicated drops and ultraviolet protection.
As with all laser correction, there is a chance of under- or over-correction, dry eye and night glare, most of which improve with time or can be addressed by an enhancement. Serious complications such as infection are uncommon. Following the drop regimen and protecting the eyes from sunlight during healing genuinely affects the result, so make sure you know who to contact and where to be seen if anything seems wrong.
Frequently asked
Is PRK better or worse than LASIK?
Neither is simply better. PRK has no flap and suits thinner corneas and high-impact lifestyles, but recovery is slower and more uncomfortable. For suitable eyes the eventual vision is comparable.
How long does PRK recovery take?
The painful surface-healing phase lasts about three to five days, useful vision returns over the first week or two, and the final stable result typically takes one to three months.
Why would I choose PRK over SMILE or LASIK?
PRK is often chosen when the cornea is too thin for a flap, when screening shows a surface irregularity, or when your job or sport makes a flap risky. Your surgeon decides based on your measurements.
Does PRK hurt?
The procedure is painless under numbing drops, but the first few days afterwards are sore and light-sensitive while the surface heals. This is managed with drops and pain relief.
Is the result permanent?
The corneal reshaping is permanent, but your eyes can still change with age, including near-vision loss and later cataract. A small number of people need an enhancement to fine-tune the outcome.
When can I drive again after PRK?
Usually once the bandage lens is out and vision has cleared enough, often around a week, but this varies. Your surgeon will confirm when your sight meets the legal driving standard.
