Scientists are working on eye transplants for vision loss. Who will sign up?

Scientists are working on eye transplants for vision loss. Who will sign up?

Often called the window to the soul, the eyes are more sacred than other body parts, at least for some.

Adobe Stock

Awash in a fluid finely calibrated to keep it alive, a human eye rests inside a transparent cubic device. This ECaBox, or Eyes in a Care Box, is a one-of-a-kind system built by scientists at Barcelona’s Centre for Genomic Regulation (CRG). Their goal is to preserve human eyes for transplantation and related research.

In recent years, scientists have learned to transplant delicate organs such as the liver, lungs or pancreas, but eyes are another story. Even when preserved at the average transplant temperature of 4 Centigrade, they last for 48 hours max. That's one explanation for why transplanting the whole eye isn’t possible—only the cornea, the dome-shaped, outer layer of the eye, can withstand the procedure. The retina, the layer at the back of the eyeball that turns light into electrical signals, which the brain converts into images, is extremely difficult to transplant because it's packed with nerve tissue and blood vessels.

These challenges also make it tough to research transplantation. “This greatly limits their use for experiments, particularly when it comes to the effectiveness of new drugs and treatments,” said Maria Pia Cosma, a biologist at Barcelona’s Centre for Genomic Regulation (CRG), whose team is working on the ECaBox.

Keep Reading Keep Reading
Stav Dimitropoulos
Stav Dimitropoulos's features have appeared in major outlets such as the BBC, National Geographic, Scientific American, Nature, Popular Mechanics, Science, Runner’s World, and more. Follow her on Facebook or Twitter @TheyCallMeStav.
If New Metal Legs Let You Run 20 Miles/Hour, Would You Amputate Your Own?

A patient with below-knee AMI amputation walks up the stairs.

(Photo credit: Matthew Orr, STAT News)


Keep Reading Keep Reading
Tyler Clites
Tyler Clites builds human cyborgs. After graduating from Harvard in 2014 with a B.S. in Biomedical and Mechanical Engineering, Tyler earned his PhD in 2018 from the Harvard/MIT program in Health Sciences and Technology. As a postdoc in the Biomechatronics Group (Professor Hugh Herr, MIT Media Lab), his current research focuses on the development of novel techniques for limb amputation surgery, with the goal of improving the neural and mechanical interfaces between persons with amputation and their prosthetic devices. He is pursuing a career in academia, where he hopes to explore applications in which surgical and mechatronic design can be leveraged together in new bionic systems for physical rehabilitation and human augmentation.
A Star Surgeon Left a Trail of Dead Patients—and His Whistleblowers Were Punished

Dr. Paolo Macchiarini, then a professor of Regenerative Medicine at Karolinska Institute in Stockholm (Sweden), looks on during a plenary session at the Science of the Future international scientific conference, on September 17, 2014.

(Credit: ITAR-TASS Photo Agency / Alamy Stock Photo)


Keep Reading Keep Reading
Eve Herold
Eve Herold is an award-winning science writer and consultant in the scientific and medical nonprofit space. A longtime communications and policy executive for scientific organizations, she currently serves as Director of Policy Research and Education for the Healthspan Action Coalition. She has written extensively about issues at the crossroads of science and society, including regenerative medicine, aging and longevity, medical implants, transhumanism, robotics and AI, and bioethical issues in leading-edge medicine. Her books include Stem Cell Wars and Beyond Human, and her latest book, Robots and the People Who Love Them, will be released in January 2024. Her work has appeared in Vice, Medium, The Washington Post and the Boston Globe, among others. She’s a frequent contributor to Leaps.org and is the recipient of the 2019 Arlene Eisenberg Award from the American Society of Journalists and Authors.