Published: Fri, June 01, 2018
Medical | By Vicki Mclaughlin

For the first time, scientists 3D-print human corneas

For the first time, scientists 3D-print human corneas

Human corneas have successfully been 3D printed for the first time by scientists at Newcastle University in England.

The printing lasted about 10 minutes.

The new technique described in the journal Experimental Eye Research, doesn't completely eliminate a need for cornea donations.

The cornea also acts as a shield to the eye, as it protects it from incoming particles. Worldwide, approximately 10 million people risk corneal blindness due to infectious disorders like trachoma, but there's a dearth of readily available transplants. To get the right consistency, the researchers added a jelly like goo called alginate and stem cells extracted from donor corneas, along with some ropy proteins called collagen.

"Many teams across the world have been chasing the ideal bio-ink to make this process feasible", study co-author Professor Che Connon said in a statement.

Google And Facebook Facing $8.8 Billion Lawsuits Under GDPR rules
Organizations should already be able to provide products or services that address their customers' rights as outlined in the GDPR. The big difference is that now, the companies will have to justify why they're collecting and using that information.

Trump Reportedly Looking to Block German Carmakers from U.S
Daimler also has a new factory in Charleston, South Carolina building Sprinter vans. The Mercedes-Benz G-Class, for example, is built at Magna-Steyr's plant in Austria.

Trump's global trade war
Europe, Japan and other US trading partners are contesting the USA tariffs at the World Trade Organization. Ross, meanwhile, said that he still plans to leave for China on Friday for the resumption of trade talks.

"This builds upon our previous work in which we kept cells alive for weeks at room temperature within a similar hydrogel", he said. They scan the patient's eye and the new cornea should be the exact size and shape of the cornea it will replace. People who have undergone laser eye surgery to improve short-sightedness are no longer able to donate their corneas for transplant. (With corneal transplants, there's no need to find a "match" between the donor and the recipient.) But because organ donors with healthy corneas aren't very common, and because of high demand, there's a donor corneal shortage.

Progress has been made in aiding human eyesight through 3D printing as seen by University of Canterbury student Logan Williams' Polar Optics 3D printed contact lenses.

Having lost my own vision while at university, I know all too well how debilitating poor eyesight can be, so being able to "regrow" fundamental parts of the eye could be a gamechanger. The bio-ink served as a solution used for 3D printing of complex tissue models. The researchers still must ensure that human bodies won't reject them, that they'll fit properly and that they'll work properly to focus light.

Che Connon, professor of tissue engineering at Newcastle University, praised the medical breakthrough for utilising cheap materials in the process. It also needed to support 3D printed structure by being stiff enough. 3D bioprinting is an emerging technology that can be harnessed for the fabrication of biological tissue for clinical applications. They say this method will allow them to create custom-made cornea transplants to suit the patient's needs.

Like this: