Cornea made from pig collagen can give 20/20 vision
Scientists have discovered that corneas made from pig collagen are able to restore vision for people legally blind or visually impaired, after surgery. Corneal transplants require a human donor and only one in 70 people are fortunate to receive one. However, Mehrdad Rafat at Linköping University in Sweden solved the near-impossible dilemma by inventing a flexible and resilient contact lens from extracted and purified pig collagen. After successful trials, the contact lens was tested in human volunteers, detailed Nature Bio Technology journal. Read Musk says Twitter will let organizations identify their associated accounts The 20 people part of the study had corneal blindness due to a condition called, keratoconus, where the cornea thins and bulges outward from the centre of the eye. Fourteen participants were legally blind before the surgery and six had severely impaired vision . The successful study restored sight to all participants and improved the...