A LASIK enhancement costs from about £500–£1,500 per eye in the UK in 2026 if you are paying — but it is often free within your original 12–24-month (or lifetime) warranty. An enhancement is a precise second laser treatment for a small residual or regressed prescription after primary LASIK. The first step is always a stability and safety assessment: your refraction must be stable, and corneal thickness and shape scans must confirm there is enough healthy cornea to treat safely. This page explains realistic 2026 pricing, the two retreatment techniques, and who is — and is not — a candidate.
UK 2026 LASIK enhancement pricing
The cost depends on whether you are still within the warranty from your original surgery, which clinic did it, and which retreatment technique is appropriate for your cornea now.
These figures assume a single straightforward enhancement. The assessment fee (refraction stability check, topography and pachymetry) is typically £100–£250 and is sometimes credited against treatment. For context on primary surgery pricing see private laser eye surgery cost, LASIK cost and laser eye surgery cost.
Vision drifted back after LASIK? An assessment confirms whether your prescription is stable and your cornea is safe to retreat — and whether you are still covered by warranty.
Book an enhancement assessmentWhat is a LASIK enhancement?
After LASIK, most people achieve their target vision and never need more treatment. A minority — roughly 1–10%, more often those who started with a high prescription — are left with a small residual error (an under- or over-correction from the outset) or develop regression (a gradual drift back towards the original prescription over months or years). An enhancement re-applies the excimer laser to fine-tune the correction.
It is important to separate two different things. Regression is a true change in the laser correction and is what an enhancement treats. Presbyopia — the age-related loss of near focus from around the mid-40s — is a normal ageing change, not a LASIK failure; it is managed with reading glasses, blended vision or, later in life, lens-based surgery, rather than a standard distance enhancement.
Flap-lift vs surface retreatment
There are two ways to deliver an enhancement, and the right one depends mainly on how long ago your LASIK was and how thick your cornea is now.
- Flap-lift enhancement — the original LASIK flap is carefully relifted and the excimer laser re-applied underneath, then the flap is repositioned. Recovery is fast, like the first LASIK. It is most straightforward in the first one to three years, before the flap edge heals firmly; the main specific risk is epithelial ingrowth (surface cells growing under the flap edge), which is usually minor and manageable.
- Surface retreatment (PRK / TransPRK) — instead of relifting the flap, the laser is applied to the surface over the existing flap. This avoids any risk from disturbing an old flap and is gentler on a thinner cornea, so it is increasingly the preferred approach for older flaps. The trade-off is a slower few-day visual recovery and a small, temporary risk of corneal haze. See TransPRK and LASEK surface ablation.
Modern enhancements are usually wavefront-guided or topography-guided to refine higher-order aberrations as well as the basic prescription.
Am I eligible for a LASIK enhancement?
Enhancement is only safe when the cornea has enough healthy tissue left and the prescription is stable. At assessment your surgeon will confirm:
- Stable refraction — your prescription has not changed over the last 6–12 months.
- Adequate residual corneal thickness — measured by pachymetry, to leave a safe stromal bed and avoid weakening the cornea.
- Normal corneal shape — topography to exclude post-LASIK ectasia (progressive corneal bulging), which is a contraindication to further ablation.
- Healthy ocular surface — dry eye treated first, as it both mimics and worsens after retreatment.
- Realistic expectations — particularly distinguishing true regression from age-related presbyopia.
If there is not enough cornea to retreat safely, your surgeon will discuss alternatives rather than proceed — this is a safety-led decision.
Warranty & what is included
Most reputable primary LASIK packages include an enhancement warranty. Before assuming you will pay, check your original agreement:
- Time-limited cover — commonly 12 or 24 months of free enhancements from the date of surgery.
- Lifetime cover — some packages include lifetime enhancement, often conditional on attending annual reviews.
- What is included — an out-of-warranty enhancement fee should cover the stability and safety assessment, the laser retreatment itself, post-operative drops and the follow-up reviews.
- Treated elsewhere? — if your original LASIK was at another clinic, you are usually treated as a self-pay case and the full enhancement fee applies; bring your original treatment records.
- Insurance — elective laser vision correction and its enhancements are generally not covered by private medical insurance; see insured patients. Spread the cost via 0% finance.
Alternatives to a LASIK enhancement
An enhancement is not always the answer — sometimes a different route is safer or more suitable:
- Glasses or contact lenses — for a very small residual error, simple correction may be all that is needed.
- Surface retreatment instead of flap-lift — where the cornea is thin or the flap is old (covered above).
- Blended vision — for presbyopia rather than regression, setting one eye slightly for near.
- Lens-based surgery — in older patients or where the cornea cannot be retreated, laser vision correction may give way to lens options. For background on the full range of laser procedures see LASIK and SMILE (and SMILE cost).