Is it possible to cure partial blindness? Researchers believe that, Yes
Source:
Eye of a person suffering from AMD
In an article published in the journal , researchers from Stanford University (USA) and Bar-Ilan University (Israel) shared the result of an amazing discovery showing that the brain “knows” how to combine natural and artificial vision, supporting the processing of information required in order to . We are talking about the implantation of an artificial retina for patients suffering from age-related macular degeneration (AMD) — one of the most common eye diseases in the world.
Age-related macular degeneration (AMD) — is an eye disease that deprives elderly patients of Central vision. Loss of visual acuity occurs as a result of cell damage in the macula — the Central part , through which the human eye can distinguish colors, to read and write, and to distinguish between smaller particles and details. Patients suffering from AMD, usually do not lose vision completely — they have the peripheral visual field. This has allowed researchers from Stanford and Bar-Ilan to find evidence that the brain really knows how to combine these two types of view.
How is the joint work of the brain and implants restore vision?
As they say in their work, the researchers, in the case of serious damage caused by AMD, it is possible to implant synthetic retina in layers of photoreceptors in biological patients. The artificial retina consists of an incredibly small electrodes (smaller diameter than a human hair). Activation of these electrodes leads to electrical stimulation of surviving retinal cells, which in turn leads to partial recovery of vision.
Patients with AMD with implanted artificial retina support a mixture of synthetic Central vision (artificial retina), and normal peripheral vision (created by biological eyes). In the future scientists need to study in detail the joint work of natural and artificial vision, if they want to understand how to cure blindness. The main issue here is whether our brain adequately to combine artificial and natural vision.
Damaged macular area of the retina looks like this
Writes , Tamar Arens-Arad, one of the researchers, said that they have used a unique projection system, which stimulated natural vision, artificial vision, or a combination of simultaneously recording cortical responses in rodents which were implanted artificial retina.
According to the lead author of the study, Professor Yossi Mandel, the results will help to restore vision in patients with AMD, and can also have an impact on future research in the field of joint work of the brain and . Agree, will be interesting to see if we can combine artificial and natural processes, to help people in the future. In any case, the work of scientists gives hope to people suffering from eye ailments today, and it can not but rejoice.
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