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Implants Allow the Blind to See
gihan_ripper writes "Neurosurgeon Kenneth Smith has performed a revolutionary operation on St Louis resident Cheri Robertson, connecting a camera directly to her optic nerve. The rig is in principle similar to Geordi La Forge's visor, albeit in very rudimentary form. At present, the 'image' consists of a number of white dots, as on an LED display. There are also governmental restrictions on this research, forcing Kenneth and his team to fly to Portugal to carry out the operation. If this technology takes off, the future will be bright for the sight-impaired."
Can I get the infrared/untraviolet model?
A blog about stuff.
Camera tech is pretty well-known. Adding IR, UV, magnification, auto-adjusting for sunlight/night vision is all fairly trivial once you have the optic connection.
Imagine switching to sepia tone whenever you want that "wild west" feel.
The hard part, of course, is the resolution. Stimulating specific optic nerves is tricky, but fortunately your brain is good at dealing with odd input even if you don't get the connection quite right. It reminds me of the experiment where someone wore mirror glasses that flipped the world upside-down. After a week or so, everything seemed normal.
Last I heard -- several years ago -- they had enough resolution to see a a black/white machine just about comperable to a single ASCII character rendered on a 1985 era CRT. That would mean an "image" would have about as much clarity as, say, one of the falling mushrooms from an original Centipeded game. Not exactly high res, but a positive step.
The problem with quotes on the internet, is that nobody bothers to check their veracity. -- Abraham Lincoln
If they're not already, DARPA will be all over this like stink on a monkey. They'd love to have soldiers will what will amount to wallhacks.
On an unrelated note, if they could make it so that they didn't need to cut open my head to do it, I'd love to have infrared/ultraviolet/telescopic/ultrasonic vision.
Article states that electrodes are implated into the back of the brain. If it really were the optic nerve it would be more significant, less danger = wider adoption.
True genius is grasping a situation like a peice of fruit, and peircing it just right so that it drains dry.
Without reading the article, I will guess that this sort of advancement will benefit those who have lost their sight but not those who never had it.
Play Command HQ online
Another strategy was just invented: if you lost your photoreceptors, just make the other neurons in the retina or brain sensitive to light. A group just managed this today, for the first time, in mice. Blind mice, who had been treated with viruses that cause the targeted cells to express light-activated channels, were able to regain transmission of information about the external world to cortex. This was recently reported in a blog, and in other media.
So sad that massive bureaucracy and misinformation makes this kind of research too difficult and expensive.
Demented But Determined.
I didn't quite understand from the article why this procedure was prevented in the US, aside from cost.
This is more or less the same technique that's been researched for decades - I saw a film (as opposed to videotape) of it in junior high when I was a kid.
There are a number of problems - as others have mentioned, it tends to cause seizures in its users. IIRC this is because the apparatus itself is fairly crude and overloads the part of the brain it's connected to. It also doesn't work very well - the resolution now is not a whole lot better than back then.
Obviously an argument can be made that someone who loses their sight may consider any visual ability valuable enough to outweigh the risks, but in this case I think the FDA is right. This particular technology is not mature enough to allow as a commercial product. There are others in development that IMO are more promising.
"...always new atoms but always doing the same dance, remembering what the dance was yesterday." -Richard Feynman
It was illegal before Bush. People have been pushing this kind of thing for a long time, and have been doing it outside of the country for a long time.
It's easy to blame everything on Bush... but really stupid too. By pinning everything on Bush, you ignore those really responsible.
Don't like the war in Iraq? Want to blame Bush? Did you forget that it requires an act of Congress to declare war, or do you just prefer to let the legislative branch delude you so they can get re-elected?
" I just wish we would get our head out of our asses when it comes to doing cutting edge surgery"
:-/
Unfortunately the operation to remove one's head from one's ass is banned in America due to government restrictions
The revolution will not be televised... but it will have a page on Wikipedia
It's important to note that due to the way the human brain develops synaptic connections in the visual cortex, only humans who had sight from birth to some age beyond 3 to 5 years of age will benefit a great deal from such a procedure. While people who are blind from birth due to cataracts or other conditions obtain some visual perception when the cataract is later removed, most never develop the neural connections that allow them to identify what they're seeing. Everything from navigating around desks in a well-lit classroom to differentiating a face from a table, a television, a light bulb, or an automobile is all but impossible if the visual cortex doesn't develop properly in response to normal visual stimulus from birth. Sight is useless without the ability to percieve what one is really seeing. So while this is incredibly impressive and promising for people who had sight but lost it, don't expect that this will be a cure-all to allow people with all types of blindness to see again.
I do feel it has become too much though - I don't believe it is the government's job to prevent us from making rash decisions.
If you don't know where you are going, you will wind up somewhere else.
Sounds like the ultimate peripheral for Duke Nukem Forever.
http://jesus.everdense.com/
Uh, no. "Image sensors", like eyes, don't produce a signal that is fundamentally different from the signals produced by any other sensory organ. What matters is where in the location in the brain to which those signals are directed. Although I'm not certain, I'd guess that this is why the technique won't work on those who were never able to see - they never developed the necessary neural connections in the brain for vision.