Research, Technology

Scientists have restored the work of the eyes of a deceased person

If a person's heart stops, theycan be rescued by administering epinephrine or using a defibrillator. But if brain death occurs, an “outrageous coma” begins, the treatment of which is meaningless - in the end, the person will die anyway. Of course, doctors can artificially maintain the functions of the heart, circulatory system, respiration and in every possible way create the appearance of life. But, in fact, a person with a dead brain is a living corpse. Brain death is considered an irreversible condition, but recently American scientists were able to restore the work of light-sensitive cells in the eyes of a deceased person. Moreover, the authors of the scientific work were able to re-establish a connection between them so that they exchange information. This is a very intriguing discovery, because if this technology is developed, it will be possible to restore the brain as well. What does it turn out, in the future people will still be able to gain immortality?

It seems that in the future, the possibilities of medicine will be limitless.

Restoration of the eyes

Some people help advance science evenafter his death, leaving his entire body for experiments. Recently, scientists from the John Moran Eye Center at the University of Utah conducted an experiment on the eyes of people who had passed only 5 hours since their death. It is not known how, but they were able to “wake up” light-sensitive receptors in the macula, the part of the retina that is responsible for central vision. According to the author of the scientific work Fatima Abbas (Fatima Abbas), after some manipulations, seemingly dead cells began to respond to bright light, colored lights and even dim glows.

Scientists have been able to revive the eyes of dead people

Previously, other scientists have already shared similarachievements. In general terms, they were able to restore the activity of neurons - electrically excitable cells that are necessary for processing, storing and transmitting information coming from outside. The photoreceptors in the macula of the eyes are also neurons. Scientists managed to restore their work, but only partially - they reacted to external stimuli, but could not exchange data with each other. American scientists were able to make a breakthrough in this matter and restored the transmission of information from photoreceptors to retinal cells that are located behind the eyes and send data to the brain.

Scientists believe that the eyes can reveal the risk of early death


Restoration of communication between neurons

It turned out that previously the exchange of information was notwas due to lack of oxygen. Dr. Frans Vinberg has found a way to restore vital gas levels in donor eyes. Again, there is no detailed information about his method, and even if there was, ordinary people would not understand all this. For us, first of all, the very fact that scientists were able to restore the work of dead parts of the body and for the first time establish a connection between them is important.

We've been able to get retinal cells to communicatewith each other as if they were alive. Other groups of scientists have restored very limited electrical activity in donor eyes. In addition, this has never been achieved in the macula, and never to the extent that we have achieved - said Frans Winberg.

According to the authors of the scientific work, this discoveryis the first step in the treatment of serious eye diseases. For example, with age, the yellow spot in the eyes of people ceases to perform its functions, which can lead to blindness. Now they are able to restore photoreceptors in this area of ​​​​the eyes, which will allow people to see again. The authors of the scientific work also want to apply recovery methods in experiments with other organs, such as the spinal cord and brain. There is hope that in the future people can be treated for disabilities or even resurrected from the dead.

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This is not the first restoration workdead organs. In 2019, we talked about how scientists managed to resurrect a pig's brain four hours after death. This was the first convincing evidence that brain death is a reversible process - the main thing is to know how to restore its functions. You can read about how scientists were able to breathe life into a dead animal at least a little in this material. This was a very important scientific discovery, which was discussed in our Telegram chat. Sometimes there are very heated discussions, so I recommend joining right now.