A keratoprosthesis is an artificial corneal device implanted to restore vision when standard corneal transplantation has failed or is unlikely to succeed. It replaces the central cornea with a clear optical cylinder supported by a surrounding carrier.
Indications
Severe ocular surface disease, multiple graft failures, chemical burns, or certain congenital conditions may lead to consideration of keratoprosthesis. Careful selection is vital because surgery and aftercare are demanding.
- Devices typically combine a clear optical core with a donor corneal or synthetic skirt
- Some designs require lifelong bandage contact lens wear
- Risk of complications such as glaucoma, retinal detachment, or infection is significant
- Patients need intensive, long‑term follow‑up in specialised centres
Visual Outcomes
Keratoprostheses can provide dramatic visual improvement in otherwise blind eyes, but vision can fluctuate and complications may limit longevity. Lifelong commitment to care is essential.
- Topical antibiotics and other drops are usually required indefinitely
- Regular imaging monitors optic, retina, and optic nerve status
- Failure may necessitate device revision or removal
- Multidisciplinary support helps manage associated glaucoma and surface problems
