A 3D printed cornea could address the world shortage of corneas
3D printed corneas are here - short science articles

Cornea plays an important role in focusing vision as it is the outermost layer of the human eye. Still, there is a global shortage of corneas for transplant since 10 million people require surgeries to avoid corneal blindness. Now, researchers have 3D printed the human cornea using an innovative method. They mixed human stem cells from a healthy donor cornea, mixed with alginate and collagen to create a solution that can be printed, so a 'bio-ink'. Then by using a simple low-cost 3D printer, the bio-ink was printed in concentric circles in the shape of a human cornea. Further, scientists claim that they can also build corneas to match a patient's unique requirements by scanning their eyes to print corneas which match their size and shape. This could be the first step towards addressing the worldwide shortage of corneas necessary for surgeries.

Read the full story: Newcastle University