It sounds like something from a science fiction film:
- A surgeon removes one of your teeth
- Shapes it into a tiny optical device
- Grows it inside your cheek for months, and then
- Implants it into your eye
One patient, who had been completely blind for 21 years, described the moment light returned after the surgery as feeling like “waking up for the first time.”
That single detail captures what tooth-in-eye surgery (OOKP) means to the people who need it most.
WHAT IS TOOTH-IN-EYE SURGERY (OOKP)?
Tooth-in-eye surgery — known medically as Osteo-Odonto-Keratoprosthesis, or OOKP — is a complex surgical procedure designed to restore vision in patients with severe, end-stage corneal blindness.
The core principle is elegant in its logic: instead of using a synthetic foreign material surgeons use the patient’s own biological tissue. Specifically, a tooth and a small section of its surrounding jawbone. The body accepts it naturally, dramatically reducing the risk of rejection.
It is worth being clear from the outset: OOKP is not a mainstream eye surgery. It is a last resort reserved for a specific group of patients for whom no other option exists.
WHO IS THIS SURGERY ACTUALLY FOR? WHO QUALIFIES — AND WHO DOESN’T?
The surgery is reserved for those with bilateral corneal blindness, where standard treatments can no longer help.
Patients ARE eligible if they have:
- Severe pemphigoid
- Chemical burns
- Stevens–Johnson syndrome
- Trachoma
- Lyell syndrome
- Multiple corneal graft failure
Patients are NOT eligible if they have:
- Severe glaucoma
- Retinal detachment
- Conditions affecting the back of the eye
HOW DOES TOOTH-IN-EYE SURGERY WORK? TWO-STAGES
OOKP is sequenced in two-stage surgical process that spans four to six months from start to finish.
The procedure requires a multidisciplinary surgical team:
- Aan experienced ophthalmic surgeon to manage the eye
- A maxillofacial surgeon to handle the dental and jawbone component
- A dedicated anaesthetic and nursing team familiar with the procedure
*OOKP is only available at a small number of specialist centres worldwide.
Stage 1 — Building the Implant
It is the more complex of the two, involving five separate procedures carried out in a single operating session:
- The eye is opened and the entire inner surface is removed.
- The inner mucosal lining of the cheek is then transplanted onto the new surface of the eye.
- A canine or premolar tooth is removed and shaped into a small, bolt-like structure.
- A cylindrical optical lens is fitted into a hole drilled through the centre of the tooth-bone lamina.
- This entire tooth-lens assembly is then implanted into a pouch created under the skin of the patient’s cheek, where it is left to develop its own blood supply over the following months.
Stage 2 — Implanting It Into the Eye
Approximately four months later, Stage 2 takes place:
- The cheek mucosal lining over the eye is opened, the inner contents of the eye are removed, and the tooth-bone-cylinder complex is taken from the cheek and inserted into the eye.
- The mucosal cheek lining is then replaced over the implant.
- The result:
- light can now enter through the plastic optical cylinder, pass through to the intact retina behind it, and the patient begins to perceive vision.
The entire journey — from first surgical appointment to restored vision — typically takes six to twelve months. It demands patience. But the outcome is vision!
WHAT ARE THE SUCCESS RATES FOR OOKP SURGERY?
For the right candidate, OOKP works, and it works long-term.
As of 2023, the anatomical success rate[1] for the procedure stands at 93.9%. https://www.optimax.co.uk/blog/what-is-tooth-in-eye-surgery/
When it comes to long-term vision, the data is equally compelling; anatomical survival rate of 94% at up to 30 years of follow-up.
OOKP Outcomes at a Glance
The table below summarises key findings from major peer-reviewed studies:
Study / Source | Follow-Up Period | Key Outcome |
Iannetti et al., Am J Ophthalmol (2022) | Up to 30 years | 94% anatomical survival; 81% with functional vision at 10 years |
Falcinelli et al., Arch Ophthalmol (2005) | 18 years | 85% of patients retained an intact OOKP |
Michael et al., Graefes Arch (2008) | 10 years | 66% anatomical survival (OOKP) vs 47% (OKP) |
Global anatomical success rate (2023) | Long-term | 93.9% across published literature |
Worldwide procedures performed | Since 1960s | Over 4,500 surgeries globally |
Key statistics table. Long-term anatomical and visual outcomes data.
What Do These Numbers Actually Mean?
OOKP is performed on patients who are already completely blind and have no remaining conventional options.
Even a partial restoration — enough to recognise faces, navigate a room, or read large print — represents an enormous improvement in quality of life.
It is equally honest to acknowledge that not every patient achieves the same result. Outcomes depend heavily on the underlying condition, the health of the retina and optic nerve, surgical expertise, and post-operative follow-up.
WHAT ARE THE RISKS AND POSSIBLE COMPLICATIONS?
No surgery of this complexity is without risk, but these are patients for whom the alternative is permanent blindness.
The risks fall into two broad categories:
- Risks related to the implant:
- The estimated risk of anatomical failure of the lamina in the long term is approximately 19%.
- Risks related to the eye (early postoperative complications occurred in only 5.24% of cases):
- Glaucoma: elevated pressure inside the eye
- Retinal detachment: serious but treatable with vitreoretinal surgery
- Vitritis: inflammation inside the vitreous cavity of the eye
- Retroprosthetic membrane formation: tissue growing across the optical cylinder
- Mucosal complications: issues with the cheek tissue covering the implant
The Honest Risk-Benefit Summary
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OOKP is only offered when the risk of doing nothing — permanent, irreversible blindness — outweighs the risks of the procedure itself.
HOW DOES OOKP COMPARE TO OTHER VISION RESTORATION OPTIONS?
OOKP is not competing with other treatments — it exists precisely because they have limits. It offers a viable path to vision restoration where no other procedure can.
Here is how it sits within the broader landscape of vision restoration.
Side-by-Side Comparison
Treatment | Suitable For | Key Advantage | Key Limitation |
Conventional Corneal Transplant (Keratoplasty) | Mild–moderate corneal damage with healthy surface | Well-established, widely available | Fails in end-stage OSD; high rejection risk |
BostonKeratoprosthesis (KPro) | Moderate–severe OSD; less complex cases | Less invasive than OOKP; no tooth required | Higher extrusion/infection risk in severe autoimmune cases |
Limbal Stem Cell Transplant | Patients with some remaining healthy stem cells | Restores natural corneal regeneration | Not viable in bilateral end-stage OSD |
OOKP (Tooth-in-Eye) | Bilateral end-stage OSD; all other options exhausted | Uses patient’s own tissue; lowest rejection risk | Complex, multi-stage; requires suitable tooth; specialist centres only |
WHAT DOES RECOVERY LOOK LIKE AFTER TOOTH-IN-EYE SURGERY?
Patients and their families should go into this with realistic expectations: the timeline is long.
That said, for patients who have already lived with total blindness, the gradual return of vision during recovery is often described as one of the most profound experiences of their lives.
After Stage 1: The Cheek Phase
Patients can expect:
- Swelling and discomfort in both the eye area and the cheek for the first one to two weeks, manageable with prescribed medication
- Dietary adjustments — chewing on the side of the implant must be avoided during the vascularisation period
- Regular follow-up appointments
- A waiting period of approximately four months before imaging confirms the implant is ready for Stage 2
During this phase, the patient remains blind. This is perhaps the most psychologically demanding part of the process.
After Stage 2: The Return of Vision
Vision does not return all at once.
The typical progression:
- Light perception returns within days of Stage 2
- Shapes and movement follow over subsequent weeks
- Functional vision — faces, navigation, large print — typically develops over four to eight weeks
- Full stabilisation takes several months, during which acuity may fluctuate
One patient regained their eyesight after 21 years of corneal blindness, with light returning first before full sight was gradually restored over several weeks.
This pattern — light first, then detail — is characteristic of OOKP recovery, and reflects the visual system re-learning to process input it has not received for years, sometimes decades.
Long-Term Follow-Up: A Lifelong Commitment
Recovery does not end when vision stabilises. OOKP requires lifelong monitoring — and this is non-negotiable.
Patients should expect:
- Ophthalmic check-ups every three to six months for the first two years, then annually
- Intraocular pressure monitoring to detect glaucoma early
- Good oral hygiene and dental care — the health of remaining teeth is directly relevant to the longevity of a tooth-derived implant
- Avoidance of facial trauma and contact sports
- Prompt reporting of any sudden vision changes, pain, or visible changes around the eye
WHERE IS OOKP SURGERY AVAILABLE — AND WHAT DOES IT COST?
OOKP requires a highly specialised multidisciplinary team — ophthalmic surgeon, maxillofacial surgeon, and a dedicated anaesthetic and nursing team — meaning it is only available at a small number of centres globally.
Where Is Tooth-in-Eye Surgery Performed?
- Italy — Rome and Bologna; the original home of the Strampelli and Falcinelli techniques, with the longest continuous experience globally
- United Kingdom — Moorfields Eye Hospital / St. George’s Hospital, London; first patient recovered full vision following the new OOKP pathway in March 2025, https://theophthalmologist.com/issues/2025/articles/december/a-tooth-for-an-eye-restoring-sight-when-there-is-no-hope/
- India — LV Prasad Eye Institute (Hyderabad) and other tertiary centres; among the highest volume of cases outside Europe
- Singapore — National University Hospital; one of Asia’s most experienced OOKP centres
- Spain, Brazil, Australia — Individual specialist centres with documented case series
What Does OOKP Surgery Cost?
Country / System | Typical Access Route | Estimated Cost |
UK (NHS) | Specialist referral; assessed case by case | Covered for eligible patients |
UK (Private) | Direct referral to specialist centre | £30,000 – £60,000+ (full two-stage process) |
United States | Private insurance or out-of-pocket | $40,000 – $80,000+ depending on centre |
India | Private hospital | £8,000 – £18,000 (approximate) |
Italy | Public or private | Partially covered in some regions |
Total cost encompasses pre-operative assessment, both surgical stages, anaesthesia, hospitalisation, the optical lens, and post-operative follow-up. When comparing options internationally, surgical experience — specifically the number of OOKP cases performed and published outcomes — must take precedence over cost alone.
If you or someone you care for is navigating complex dental or oral surgical needs as part of a broader treatment journey, our specialist team at OONE LIFE Dental offers a free, no-obligation consultation to help you understand your options clearly.
FAQs
[1] Anatomical success means the implant remains structurally intact and in place.
What is tooth-in-eye surgery, exactly?
Osteo-Odonto-Keratoprosthesis (OOKP) uses a patient’s own tooth and surrounding jawbone to create a biological support structure for an artificial optical lens, implanted into the eye to restore vision. It is used exclusively in severe, end-stage corneal blindness where all other treatments have failed.
Who is a candidate for OOKP surgery?
Ideal candidates have bilateral end-stage ocular surface disease caused by Stevens–Johnson syndrome, chemical burns, severe autoimmune dry eye, or multiple failed corneal grafts. They must also have intact retinas and optic nerves, a suitable tooth, and sufficient general health for a multi-stage procedure.
Is tooth-in-eye surgery painful?
Both stages are performed under general anaesthesia — patients feel nothing during surgery. Post-operative discomfort (swelling, soreness around the cheek and eye) is expected and managed with prescribed medication. Most patients describe recovery as demanding but entirely worthwhile.
How long does the full OOKP process take?
From initial assessment to stabilised vision: typically, six to twelve months. Stage 1 and Stage 2 are separated by approximately four months to allow the tooth-bone-lens complex to vascularise inside the cheek.
What is the success rate of tooth-in-eye surgery?
The anatomical success rate stands at 93.9% as of 2023. A long-term study of 181 patients found that 85% retained an intact OOKP after 18 years. Functional visual rehabilitation success sits at 65–85% over 5–10 years, depending on the underlying condition and surgical centre experience.
Can a donor tooth be used?
Yes, from a close family member, if the patient’s own teeth are not suitable. However, outcomes with the patient’s own tissue are consistently superior, as the body integrates autologous material more reliably with lower long-term resorption risk.
Is OOKP available on the NHS in the UK?
Moorfields Eye Hospital launched a dedicated OOKP pathway at St. George’s Hospital, London in 2024, with its first patient recovering full vision by March 2025. NHS access is assessed case by case via specialist referral. Private access in the UK is estimated at £30,000–£60,000 for the full two-stage process.
Does the tooth stay in the eye permanently?
Yes. Once successfully integrated, the tooth-bone-lens complex becomes a permanent part of the eye’s structure, treated by the body as living tissue — which is precisely what gives OOKP its exceptional long-term durability compared to fully synthetic alternatives.