If you’ve been told you may need a corneal transplant because of advanced keratoconus, there may be another option worth learning about: CTAK, short for Corneal Tissue Addition Keratoplasty.

CTAK is a newer procedure developed to help reshape the cornea and improve vision in people with keratoconus. Instead of using synthetic materials or relying on a full-thickness corneal transplant, CTAK uses small segments of sterilized donor cornea tissue. The tissue is sterilized using a process called gamma irradiation, which removes all living cells—making it much less likely to be rejected by the body.

One of the most exciting parts of CTAK is how personalized it is. Instead of using pre-sized rings or inlays, a special laser is used to cut the donor tissue and the channel in your cornea based on your eye’s exact shape. This customized approach can lead to significant improvements in both vision and corneal shape. Finally, unlike a traditional corneal transplant, CTAK is reversible. If needed, the implanted tissue can be removed or even replaced.

Like any procedure, CTAK isn’t for everyone. It’s typically considered for people with moderate to advanced keratoconus who need more than glasses, contacts, or cross-linking. If you’re in that category, CTAK may be worth asking your eye doctor about.

At NKCF, we want patients to know what’s out there. Treatments for keratoconus are evolving rapidly, and that’s a good thing. Procedures like CTAK are expanding the toolbox for doctors and giving patients more options—especially when traditional choices may not be enough. You can learn more about CTAK here.