| Researchers at Newcastle University have announced that they have managed to print the cornea in 3D, the outermost part of the human eye. At present, 10 million people worldwide need surgery to prevent corneal blindness caused by diseases such as trachoma. Most importantly, nearly 5 million people are completely blinded due to corneal scars caused by an accident or disease. Now, this is a high-tech way of producing corneas. It can end this all. It acquires stem cells from a healthy donor's cornea and mixes it with a gel, creating what researchers think of as 'bio-ink', a unique gel, alginate and collagen combination that maintains the vitality of stem cells. , Produce enough hard material to keep its shape, but soft enough to squeeze out from the nozzle of the 3D printer. To customize the cornea for a specific person, scientists can scan the patient's eyes before creating a cornea that fits the size and shape of the individual. However, currently this technology is not yet ready for large-scale use. Such a 3D-printed cornea will have to be performed now. Further tests may take several years to use them for transplantation.   |
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