Eye colour change surgery in Turkey: what keratopigmentation involves and why ophthalmologists warn about it
Three different operations sold as one. 68.8% of cosmetic iris implants were removed; the AAO warns on both. Turkey prices €3,500-€10,300, August 2026.
Last updated: August 2026
Three completely different operations are sold in Turkey under the label "eye colour change": cosmetic iris implants, laser iris depigmentation, and keratopigmentation (corneal tattooing). They are not variations of one procedure and their risk records are not comparable. In a systematic review of 128 eyes with cosmetic iris implants, 88 eyes — 68.8% — needed the device removed because of complications, and the authors concluded the technique should be avoided. Keratopigmentation has a much better published safety record but is still a permanent, largely irreversible change to a healthy cornea, and the American Academy of Ophthalmology issued a public warning against both procedures on 29 January 2024. Advertised prices in Turkey ran roughly €3,500–€10,300 when we checked clinic listings in August 2026.
DoctorVi does not list, broker or quote this procedure, and we take no commission on any treatment — clinics pay us a fixed subscription. This page has nothing to sell you.
The three procedures sold under one name
Most price pages blur these together. The differences decide your risk.
| Procedure | What is changed | Reversible? | Published evidence base |
|---|---|---|---|
| Cosmetic iris implant | Silicone disc placed inside the eye, in front of the natural iris | Only by a second operation to remove it | Consistently poor: high rates of glaucoma, uveitis, corneal decompensation |
| Laser iris depigmentation | Q-switched Nd:YAG laser breaks down melanin in the front layer of the iris | No | Thinnest of the three; mostly case reports, little long-term data |
| Keratopigmentation (KTP) | Mineral pigment placed inside the cornea, in a ring that covers the iris colour | Practically no | Largest series and the only ones showing high satisfaction, but mostly single-centre |
Only keratopigmentation and laser depigmentation are widely offered in Turkey today. We found no licensed Turkish eye hospital publicly advertising cosmetic iris implants in August 2026 — but they still circulate on social media, so they are covered here.
Cosmetic iris implants: the clearest evidence of harm
Artificial iris devices exist for a real medical reason. Patients born without an iris (aniridia), or who lost iris tissue to trauma, get glare and poor contrast because nothing controls how much light enters the eye. Implants approved for those defects genuinely help.
The cosmetic version places a coloured disc on top of a normal, intact iris in a healthy eye. The implant sits in the front chamber and rubs against the iris, shedding pigment that clogs the eye's drainage angle. What the published series show:
- In a systematic review of 26 studies covering 128 eyes, 68.8% of implants had to be explanted. Secondary glaucoma occurred in 59 eyes, uveitis in 39, cataract in 22, and severe endothelial cell loss or corneal decompensation in 44. In 8 eyes, final corrected vision was counting fingers or worse.
- In a 12-patient series of one branded implant, mean age 32, anterior uveitis appeared in 83.3%, glaucoma in 58.3% and corneal decompensation in 50%.
- Damage is not always early. A 2022 case report describes a woman with bilateral cosmetic implants who had no problems for 15 years, then developed corneal oedema, pigment dispersion, angle closure and raised pressure, with endothelial cell counts down to 1,268 and 1,122 cells per mm². That cell layer does not regenerate.
A 2025 review in Ophthalmology and Therapy put it plainly: cosmetic iris implants are not approved by major regulatory bodies and are widely considered unsafe. A clinic offering you one has told you what you need to know about the clinic.
Keratopigmentation: what the data actually shows
Keratopigmentation is the procedure Turkey is genuinely known for, and it deserves a fairer hearing than the implants. A femtosecond laser cuts a circular pocket inside the corneal stroma and micronised mineral pigment is placed into it. The natural iris is untouched; the cornea in front of it is made opaque in a ring shape.
The strongest safety data comes from a series of 234 eyes in 204 patients, therapeutic and cosmetic combined, followed for 4 months to 12 years. The overall complication rate was 12.82%. Among those complications, light sensitivity accounted for 49%, colour fading or change 19%, corneal blood vessel growth 7%, visual field limitation 4% and MRI-related changes 2%. Light sensitivity resolved in 81.8% of affected patients by six months.
A prospective multicentre series of 79 eyes in 40 healthy sighted patients (mean age 34, mean follow-up 29 months) reported 92.5% excellent patient satisfaction. It also reported that 35.4% of eyes needed at least one further operation for colour touch-ups, some needing two or three. Light sensitivity at one month affected 30%.
The complication that should worry you most
In 2024, the journal Cornea published five patients (10 eyes) who developed corneal ectasia — progressive thinning and bulging — between 6 months and 4 years after purely cosmetic keratopigmentation. All had normal topography and normal vision beforehand. Three needed cross-linking. One had had previous LASIK, one had been rubbing the eyes for allergic conjunctivitis; in the rest, no predisposing factor was found before surgery.
Ectasia is the same complication that makes surgeons refuse LASIK in thin or irregular corneas, and it can end in a corneal transplant. A 2025 review lists photophobia and ectasia as the two most frequent side effects specifically in purely cosmetic keratopigmentation.
That is the honest state of the evidence: encouraging medium-term results from a small number of centres, and a complication profile nobody can yet quantify at ten or twenty years.
Laser iris depigmentation: the least documented option
This method uses a Q-switched Nd:YAG laser to break down melanin in the front layer of a brown iris, so the blue-grey stroma underneath shows through. It puts nothing inside the eye and cuts nothing, which is why providers describe it as the gentle option.
It is also the option with the least published evidence. The concern is where the released pigment goes: into the drainage angle, where it can raise intraocular pressure. Reported problems include patchy colour, ongoing light sensitivity, pressure spikes, and in individual case reports, laser-induced damage to the macula and perforation of the iris. You get whatever colour is underneath, and it cannot be undone. Treatment is staged over months, so cost and risk both accumulate in a way one package price does not show.
What the American Academy of Ophthalmology says
On 29 January 2024 the AAO issued a public warning about both iris implant surgery and keratopigmentation, describing them as trending on social media. For implants it listed reduced vision or blindness, light sensitivity, glaucoma, cataract, corneal injury potentially needing a transplant, and iris inflammation. For keratopigmentation it listed corneal damage leading to cloudiness, warpage, fluid leakage and vision loss; light sensitivity; dye reactions causing inflammation, uveitis or blood vessel growth; bacterial or fungal infection; uneven dye distribution; dye leaking into the eye; and colour fading.
Its clinical spokesperson JoAnn A. Giaconi, MD, was quoted: "With purely cosmetic surgeries on the eye, it's just not worth the risk when it comes to your good vision." The Academy's position is that the safest way to change eye colour is prescribed, professionally fitted coloured contact lenses.
Medical indication versus cosmetic wish
This distinction changes the entire risk calculation, and clinic marketing tends to erase it.
When keratopigmentation is done on an eye already blind or disfigured by a corneal scar, or on an iris damaged by trauma or aniridia, the patient starts from vision they cannot lose and symptoms they want relieved. Published series in that group report relief of glare and photophobia, and sometimes improved acuity. When the same operation is done on a healthy sighted eye with 20/20 vision, every complication is a pure loss — there is no symptom to relieve, and the only available direction is down.
If a clinic quotes you the safety record of therapeutic keratopigmentation while selling you the cosmetic version, they are quoting the wrong study.
Cost in Turkey, August 2026
DoctorVi does not quote this procedure. The figures below are advertised package prices collected from clinic and medical-travel listings, not prices verified with clinics in our network.
| What is advertised | Typical advertised range | Notes |
|---|---|---|
| Keratopigmentation, both eyes, package | €3,500–€10,300 | Widest spread of any eye procedure we track; most listings cluster €5,000–€8,500 |
| Keratopigmentation outside Turkey | €5,500–€8,500 and up | US listings run considerably higher |
| Laser iris depigmentation | Rarely published | Priced per session after examination |
| Colour touch-up or revision | Often outside the package | A third of eyes in one series needed a further operation |
Ranges dated August 2026. Advertised prices, not quotes, and not a recommendation.
The cost almost never quoted is complication management. Cross-linking, long-term glaucoma medication, explantation or a corneal transplant are all paid for at home, in your own healthcare system, years later. See what happens after you fly home and your options if surgery abroad goes wrong.
Why Turkey became the centre of this procedure
Turkey has a large refractive surgery sector, with femtosecond lasers already installed in hundreds of clinics for LASIK and SMILE. Keratopigmentation uses the same laser platform, so once the equipment and the international patient pipeline exist, adding a cosmetic corneal procedure costs a clinic very little. There is also a regulatory gap: cosmetic eye colour change sits outside most national guidance, so clinics that are entirely legitimate for cataract or vision correction can offer it without breaking a rule. Legality is not clinical consensus, and here the two point in different directions.
For eye surgery with a real medical indication, our guides cover LASIK cost and eligibility and how LASIK compares with SMILE.
Questions to answer before you book
Take these to the surgeon, in writing, and keep the answers.
- What exactly are you doing to my eye? Implant, laser on the iris, or pigment in the cornea. If the answer is vague, stop.
- What is your own complication rate, over what follow-up? Their numbers, not the literature's.
- What is my corneal thickness and topography? Refuse to proceed without pachymetry and topography. Previous LASIK, thin corneas or suspected keratoconus should be disqualifying.
- Who manages a complication in month eight, when I am home? A named plan, not a phone number.
- What does reversal involve? For corneal pigment, the honest answer is that removal is very limited.
- Will this affect future eye surgery? An opaque corneal ring interferes with cataract surgery planning and retinal examination.
- Is the clinic authorised for international patients? Turkey's Ministry of Health runs a health tourism authorisation scheme; ask for the certificate. Our 12-point red flag checklist covers the rest.
If the clinic answers any of these with a discount offer, that is your answer.
Reversibility: the part that is usually understated
None of these procedures is properly reversible. An implant can be explanted, but the surgery is difficult, often requires cutting the device inside the eye, and does not undo endothelial cell loss or glaucoma damage. Laser depigmentation cannot be reversed at all — melanin does not grow back. Keratopigmentation pigment fades and shifts but does not leave; histology studies have found tattoo particles inside corneal cells up to 61 years later.
Coloured contact lenses come out at night. That is not a rhetorical point — it is the single largest difference in the risk profile.
Frequently asked questions
Is eye colour change surgery legal in Turkey?
Yes. Keratopigmentation and laser iris depigmentation are performed legally by licensed ophthalmologists. Legality reflects the absence of a specific prohibition, not professional endorsement — the American Academy of Ophthalmology advises against both for purely cosmetic reasons.
Which method is the safest?
Of the three, keratopigmentation has the best published record: a 12.82% complication rate across 234 eyes and 92.5% patient satisfaction in a 79-eye prospective series. Cosmetic iris implants have the worst, with 68.8% explantation in a 128-eye review. The safest option overall is prescribed coloured contact lenses, which carry no surgical risk.
Can keratopigmentation make me blind?
Permanent vision loss is rare in the published cosmetic series, but recognised complications include corneal ectasia, infection and inflammation, each of which can reduce vision and in severe cases require a corneal transplant. Any clinic that guarantees an outcome is telling you something untrue.
Does the colour look natural?
In the largest prospective cosmetic series, independent observers rated the appearance excellent in 90% of cases. Colour drift and fading are common enough that 35.4% of eyes needed at least one touch-up operation. Ask to see unedited photographs at 12 months and beyond, not at one week.
Will my night vision change?
Light sensitivity is the most frequently reported complication, affecting about 30% of patients at one month in one series and resolving in most within six months. Because the pigment ring sits in the cornea and does not open and close like a pupil, glare and halos in low light are a structural possibility rather than a healing effect.
Can I have LASIK or cataract surgery afterwards?
It becomes harder. An opaque corneal ring obstructs the surgeon's view during cataract surgery, complicates lens power calculation and makes retinal examination harder. Previous laser vision correction is also a risk factor for ectasia after keratopigmentation. Tell any future eye surgeon exactly what was done.
Is the pigment safe with MRI scans?
Modern micronised mineral pigments are formulated for the eye, but MRI-related changes accounted for 2% of complications in the 234-eye series, and one of the five reported ectasia cases developed after an MRI. Declare the procedure before any scan.
DoctorVi earns nothing from this procedure. We do not list it, we do not refer patients for it, and no clinic can pay to appear in this article — partner clinics pay a fixed subscription and we take no commission on any treatment. That is the whole reason we can publish a page whose conclusion, for most healthy eyes, is no.
If you are weighing an eye procedure with a real medical indication — vision correction, cataract, or reconstruction after iris trauma — describe your case and get responses from verified clinics, or browse verified clinics yourself. No commission, no referral fee, no obligation.
Sources: American Academy of Ophthalmology, "Academy Issues Warning on the Dangers of Eye Color-Changing Procedures", 29 January 2024 (aao.org/newsroom/news-releases/detail/academy-issues-warning-on-eye-color-procedures); EyeWiki (AAO), "Eye Tattooing", reviewed January 2025 (eyewiki.org/Eye_Tattooing); J Cataract Refract Surg 2016, cosmetic iris implant outcomes (pubmed.ncbi.nlm.nih.gov/27839608); Br J Ophthalmol 2016, BrightOcular implant series (pubmed.ncbi.nlm.nih.gov/26719491); BMC Ophthalmol 2022, long-term implant complications (pubmed.ncbi.nlm.nih.gov/36451122); Br J Ophthalmol 2018, keratopigmentation in 234 eyes (pubmed.ncbi.nlm.nih.gov/28855194); Cornea 2021, cosmetic keratopigmentation in sighted eyes (pubmed.ncbi.nlm.nih.gov/32740012); Cornea 2024, corneal ectasia after cosmetic keratopigmentation (pubmed.ncbi.nlm.nih.gov/39509277); Ophthalmol Ther 2025, review of cosmetic eye colour change techniques (pmc.ncbi.nlm.nih.gov/articles/PMC12271006); Republic of Türkiye Ministry of Health, Department of Health Tourism (saglikturizmi.saglik.gov.tr). Price ranges collected from public clinic and medical-travel listings, August 2026.
Ask an expert
Talk one-on-one with doctors via free 20-minute video meeting.