Ocular Regenerative Medicine and Stem Cell Therapy

Regenerative medicine in ophthalmology aims to replace or repair damaged eye tissue using cells, genes or biological materials. One part of it is established practice: limbal stem cell transplantation for corneal surface failure, amniotic membrane grafts and blood-derived eye drops. One gene therapy is approved for a specific inherited retinal disease. Most of the rest, including stem cell treatment for macular degeneration, retinitis pigmentosa, glaucoma and optic nerve damage, remains experimental.

This distinction matters because unregulated clinics in many countries sell stem cell injections for untreatable eye disease. Patients have been blinded by injections of fat-derived or bone marrow cells into or around the eye. No such treatment has been shown to restore vision. Legitimate experimental treatment is given in registered clinical trials, which do not charge participants for the product.

Conditions this service looks after

• Limbal stem cell deficiency after chemical or thermal burns, where established treatment exists
• Severe dry eye and non-healing corneal surface defects
• Neurotrophic keratitis
• Inherited retinal dystrophy caused by faults in both copies of the RPE65 gene, for which gene therapy is approved
• Dry macular degeneration, retinitis pigmentosa and Stargardt disease: research only
• Glaucoma and optic nerve damage: research only

Tests you may be offered

• Full eye examination with OCT and visual fields: Defines the exact diagnosis and how much function remains.
• Assessment of the corneal surface: Staining patterns, impression cytology or confocal microscopy to confirm limbal stem cell deficiency.
• Electroretinography: Measures retinal cell function in inherited disease.
• Genetic testing: Essential before gene therapy can be considered, and to match you to trials.
• Clinical trial search: Checking registries for ethically approved studies relevant to your condition.

Treatments available

• Limbal stem cell transplantation: Tissue from your healthy eye, a relative or a donor, sometimes expanded in a laboratory, rebuilds the corneal surface. Established, with good results when only one eye is affected.
• Amniotic membrane grafting: A biological dressing that promotes surface healing. Established.
• Autologous serum or platelet-rich plasma eye drops: Made from your own blood for severe dry eye and persistent defects. Reasonable supporting evidence; not a cure.
• Nerve growth factor drops (cenegermin): Approved for neurotrophic keratitis.
• Voretigene neparvovec gene therapy: Approved for RPE65 retinal dystrophy only, delivered under the retina at specialised centres.
• Stem cell injections for retinal or optic nerve disease: Experimental. Should only be received within a registered, ethically approved trial.

When to ask for a specialist opinion

• You have a corneal surface that has failed after a burn or repeated surgery
• You have an inherited retinal disease and have not had genetic testing
• You have been offered a paid stem cell treatment and want an independent opinion
• You want to know which legitimate trials exist for your condition

Travelling to Türkiye for this care

Travel can be reasonable for the established procedures: limbal stem cell or amniotic membrane surgery needs a stay of about 2 weeks and months of drop treatment with shared follow-up at home, and serum drops need a supply route that works where you live. A diagnostic and genetic work-up with an honest opinion is also worthwhile. It is not reasonable to travel for paid stem cell injections for macular degeneration, retinitis pigmentosa, glaucoma or optic nerve atrophy. Ask any provider for the trial registration number, ethics approval and published results, and who pays for the product.

Send your reports, scans and a short history and a Clinic-Y coordinator replies within 24 hours with suitable teams and written, all-inclusive proposals side by side. Reviewing your case is free.

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