For the first time, a 3D-printed cornea has been transplanted into a human.

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For the first time, a 3D-printed cornea has been transplanted into a human.

In an unprecedented development, a legally blind patient has received a 3D-printed cornea made from human eye cells, in a successful start to an early-stage trial, according to Precision Bio, the manufacturer of the implanted cornea.
Currently, corneal transplants require eye tissue from human donors. As with all human tissue and organ transplants, demand is usually greater than supply.

Researchers said the 3D printing process allows for the production of hundreds of implants developed in the laboratory from cells from a single donor's cornea.
Surgeon Michael Maimoni of Rambam Medical Center in Israel said in a statement: "For the first time in history, we have witnessed a cornea produced in a laboratory, from living human cells, restoring sight to a human being."

He added: "It was... a glimpse of a future where no one will have to live in darkness because of a lack of donated tissue."
The first phase of the ongoing trials involves corneal transplants for a total of 10 to 15 patients eventually.
Precision Bio, based in North Carolina, expects to announce preliminary results of the study in the second half of 2026.