‘Resurrection’ successfully human eye after death

Eyes can be “resurrected” taken from unilad

To understand how neuron died from lack of oxygen, a team of experts from the University of Utah and the Scripps Research Institute (USA) measured the activity of retinal cells in mice and humans after death, according to a report published in the journal Nature.

And the researchers were surprised to discover that by simply affecting the tissue’s environment, they were able to restore their capacity within five hours of the subject’s death.

When using light to stimulate the eyes, Retinal of the dead still emit specific electronic signals, called b-waves. In living humans, the presence of b-waves indicates communication between layers of macular cells, allowing humans to see.

This is the first time the eyes of a dead person have reacted in this way. That has led some experts to question the irreversible nature of death in the central nervous system.

“We were able to awaken the photoreceptors in the macula of the human eye, which is also the part of the retina responsible for visual acuity and the ability to see specific details and colors,” says Dr. Fatima Abbas scientist of the University of Utah.

“For eyes that were received from a donor up to 5 hours after the time of death, the cells responded to colored light, bright light, and even very faint flashes of light,” said Abbas. said.

In short, the study by Abbas and his colleagues demonstrates that the cells inside a dead person’s eye can communicate with each other as they normally do while alive.

The team of experts hope that the results of the study will lead to the development of therapies to improve vision and light reception in eyes with macular problems, such as: macular degeneration due to age.