Bionic vision - artificial eyes

Undelete the view again, you are a very ambitious, more ambitious objective that to undelete any other body organ. To the applicants to develop kind of a bionic eye, they still have left a lot you, and the prostheses to implant electrodes directly in the brain like one makes with other organs, they are also in a very preliminary process.

The scientists got that a person to which were applied this developing treatment as test, saw points called luminous "fosfenos", (the stars that appear when being rubbed the eyes) when they sent you electric stimuli. With signals in sequences that drew forms, that person ended up reading letters. The results of this studio in the visual cortex of a blind person during 22 years, are very esperanzadores to develop a visual prosthesis.

The future objective, logically, consists on connecting a device from these features to a camera, and to a computer able to translate the images. but to marry chips permanently the brain outlines problems of surety. for example, one of the questions vugentes is still that you would happen if the metal of the electrodes, by force of supporting electric downloads, becomes noxious substances for the nerve tissue.

Even this way, you are viable this resource for which still exist a hope to undelete the vision of those non seers.

Artificial retina will allow to see to blind

Recently he commented the development of a bionic contact len that allowed to raise the vision of the focused objects. Now, we meet with a more interesting notice, a team of Japanese scientists of the University of Osaka and the Institute Nara of Science and technology they have developed a system of artificial vision that make arrive visual signals to the brain, what would allow to undelete the mediating vision this blind technical people.

The device consists on some glasses of sun that take incorporate some chambers of filming of images and in some electrodes that are implanted in the eye with a not very invasive surgery. Each electrode has a similar resolution to that of a píxel of digital image, and the scientists hope to end up implanting up to 100 electrodes in some years, what would suppose that a blind man could distinguish objects with articulation to 30 centimeters of distance.

Also, the system includes the implant in the eye of a game of electrodes of four square millimeters that you/they boost the optical ledge. Once the signals reach the brain, the patient can see again. The quality of the vision procured by the system depends on the number of electrodes that you/they are implanted in the eye, so that we make ourselves an idea, each one of these electrodes is comparable with a píxel of the digital picture. The implanted electrodes are floppy thanks to the use of chips of integrated circuits.

The idea of the investigators is that your invention you can market in 2012, for the moment, this year, the plans are to implant, with surgery, 49 electrodes of the third generation of the system in the eye of a patient, with the objective of improving the effectiveness of the device so that you allow to see something more than you shine.