Aug. 17, 2022

For the first time, researchers in Sweden have been able to create a successful alternative — bioengineered cornea implants made of collagen derived from pig skin.


  • The implant was used to successfully restore the vision of 20 people in India and Iran, most of whom were blind due to keratoconus, a disease that leads to thinning of the cornea. The findings were published in the journal Nature Biotechnology on August 11.
  • Researchers claim that there is a severe shortage of corneas, with only one available for 70 patients.
  • As a substitute for human corneas, the researchers utilised medical-grade collagen derived from pig skin, a byproduct of the food industry that is already used in medical devices for glaucoma surgery.
  • This is not only cheaper and easier to access than donated corneas, but requires a less invasive procedure and can be stored for a significantly longer period — up to two years, the study notes.