Synthetic corneas prove successful - latimes.com: "An experimental synthetic cornea implanted in 10 patients may be a potential alternative to cadaver corneas for curing vision loss due to corneal inflammation and scarring, researchers said Wednesday.
Eye surgeons currently use primarily cadaver corneas for transplants, but that requires the use of anti-rejection drugs and presents a risk of infection. Plastic corneas can also be used, but they present other problems and are generally tried only when tissue transplants have failed.
The new artificial corneas use collagen produced in yeast as a scaffolding that allows cells from the recipient to grow into the graft so that it mimics the original tissue. The two-year preliminary test showed that the biosynthetic corneas restored vision as effectively as cadaver corneas, did not require anti-rejection drugs and allowed normal tears to form."