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Scientists learn to print customized eye corneas on a 3D printer

July 9, 2024  16:51

Scientists from the Karlsruhe Institute of Technology (Germany) as part of a research team have developed a 3D laser printing method to create personalized corneas suitable for transplantation with a lower risk of rejection. This is reported on the NEULAND 2024 website.

According to the World Health Organization (WHO), nearly two million people worldwide suffer from blindness due to loss of corneal transparency. Conditions that can lead to corneal blindness include viral or bacterial infections, contact lens injury, and other problems such as dry eyes.

Although doctors can perform corneal transplants to restore vision, a shortage of donors makes this option unavailable to some people. Moreover, donated corneal tissue can lead to a rejection reaction similar to other organ transplants.

To improve the efficiency of such surgeries, scientists have developed a laser-based 3D printing method to create personalized corneas suitable for transplantation with a lower risk of rejection. The process of creating them uses a personalized bioinjector made from stem cells from a person awaiting a transplant and transparent, chemically modified collagen.

The scientists noted that in the future, doctors will be able to 3D print a new cornea during the surgical removal of a patient's damaged tissue, which will help speed up the graft creation process many times over.

Scientists noted that in the future, doctors will be able to print a new cornea on a 3D printer during the surgical removal of damaged tissues of the patient, which will help to accelerate the process of creating a graft many times.

According to the researchers, their development will greatly improve and simplify the process of returning vision lost due to corneal damage. Now the scientists are conducting additional tests before introducing the new method of 3D printing eye tissue into clinical practice.

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