Posts Tagged ‘eye’

Stem cell therapy restores British man’s eyesight
Russell Turnbull, now 38, lost almost all the sight in his right eye after trying to break up a fight and being sprayed with ammonia 15 years ago. The result for him was what's known as Limbal Stem Cell Deficiency, which caused him great pain, the need for therapeutic treatment, and economic dependency. Good news for Russell is that he can put all that behind him now, after becoming one of the first recipients of a new stem cell grafting procedure, whereby healthy tissue from his left eye was implanted into his right and -- just like a video game medpack -- restored his vision to normal. For the moment, this treatment is limited to patients with at least one healthy eye, but given the pluripotent nature of stem cells, it is hoped that tissue from elsewhere in the body could one day be used to regenerate damaged parts, such as the cornea in this case. You may find further enlightenment in the video after the break.

Continue reading Stem cell therapy restores British man's eyesight

Stem cell therapy restores British man's eyesight originally appeared on Engadget on Wed, 23 Dec 2009 04:27:00 EST. Please see our terms for use of feeds.

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British surgeons using radiation beams to halt macular degeneration
We've seen more eyesight restoration efforts than we could easily count, but rather than tooting their horn about some theoretical discovery, boffins at Kings College Hospital in London are actually putting their hard work to use on real, live human brings. The new process, which goes by the name brachytherapy, is a one-off treatment for macular degeneration. In essence, surgeons carefully light up a beam of radiation within the eye for just over three minutes, which kills harmful cells without damaging anything else. A trial is currently underway in order to restore eyesight in some 363 patients, and everything thus far leads us to believe that the process is both safe and effective. As for costs? The procedure currently runs £6,000 ($9,889), but that's still not awful when you consider that existing treatments involving injections run £800 per month. Hop past the break for a video report.

Continue reading British surgeons using radiation beams to halt macular degeneration

British surgeons using radiation beams to halt macular degeneration originally appeared on Engadget on Mon, 23 Nov 2009 07:28:00 EST. Please see our terms for use of feeds.

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Forget Designer Purses, I Want Some Designer Eyeballs [Vision]

LASIK's been around a while, and somehow it was only a matter of time before designer vision, corneas custom-tailored to lifestyle and career, started to turn common. Could laser eye surgery will become the new graduation boob job?

We upgrade, update, and customize nearly everything, so why not our vision too? Reach for the stars and all that jazz. And even the tech fits the theme: some more common optical surgical procedures are actually based on NASA technology:

Wavefront technology, originally developed by NASA to aid the focus of the Hubble Space Telescope on distant stars, measures up to 250 spots in the pupil to provide a precise map of the cornea and iris. This offers the potential to correct problems not addressed by glasses, such as halos around lights at night or glare.

Fighter pilots, snipers, long-distance drivers, politicians, supermodels, and your average Sally or Joe Smith are getting eye surgery. Why? Some are doing it for vanity, to no longer have to wear glasses they may consider unsightly, or contacts that may be a hassle. Others are doing it to advance in their careers: some pilots wouldn't be allowed to fly without meeting certain vision requirements, and others just wantbetter than normal vision.

Gradually it's becoming more and more common for patients to request procedures which will over-correct or modify their corneas with goals other than simple 20/20 vision in mind. Those pilots might want better night vision and the speech givers want to avoid wearing reading glasses and request monovision. That's great, but what about that Yankees catcher who gets surgery to see the balls flying at him better? While no one will care much about other cases, there could eventually be argument that his vision surgery is some form of unfair enhancement.

Potential arguments and debates aside, it's not all just about boosting career aspirations and vanity though. Dr. Julian Stevens of Moorfields Eye Hospital, an expert on laser refractive surgery, gives an example of how "customized" vision helped a patient's quality of life:

"One of my patients led an active life and had high-quality distance vision. When he became paralyzed from the neck down, his world became smaller - reading and television. Spectacles on your nose become painful if you can't shift them." The solution? Mr Stevens made him slightly short-sighted.

I must admit that this particular example made me cringe a little bit. What are the ethics of downgrading someone's vision at his or her request even if it's for an improvement in lifestyle. No matter. There's some great potential for both good and evil in it, so I'll be paying attention to advances in this whole custom-tailored vision trend, because my death glare definitely needs some upgrading. [Times Online]

Photo by bogenfreund




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Video: doctors implant tooth into eye, restore sight, creep everyone out
Osteo-odonto-keratoprosthesis. It's a real procedure that really does revive people's ability to see, yet we get the feeling that people will be more, um, excited about how it's done than why it's done. The seemingly Mary Shelley-inspired doctors extract a tooth from a blind person and drill a hole through it, where a prosthetic lens is placed, and the resulting macabre construction is implanted into the blind person's eye. The tooth is necessary as the body would reject an artificial base. It's not at all pretty, and it cannot repair every type of blindness, but it's still a major step forward. To hear from Sharron Thornton, the first American to have undergone the procedure, check the video after the break, but only if you can handle mildly graphic content -- you've been warned.

[Via Daily Tech]

Continue reading Video: doctors implant tooth into eye, restore sight, creep everyone out

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Video: doctors implant tooth into eye, restore sight, creep everyone out originally appeared on Engadget on Tue, 22 Sep 2009 06:25:00 EST. Please see our terms for use of feeds.

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A Quick Update on the PlayStation Motion Controller [PS3]

With the PS3 Slim hogging the limelight, you may have missed Sony's update on its motion sensing controller. This reel from GamesCon shows it waving about as a wand, flashlight, and yep, even a hair brush.

Still only mini game demos though, and we won't hear much more until the Tokyo Game Show on September 24. Hopefully we'll get to see some live demos of real games, along with a finalized name and date to expect it in Spring.

Also See: How Sony's PlayStation Motion Controller Works




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TruFocals make steampunk glasses a functional, expensive reality

Glasses with an adjustable focal length -- sounds so simple, somebody must have already done it, right? Well, yes, but earlier efforts have looked more like diving goggles than something you could, you know, wear in public. The Harry Potter-esque TruFocals, on the other hand, are (only just) acceptable looking and operate via the golden slider you see above. By tweaking translucent fluids between a pair of lenses for each eye, it alters the distance at which the specs focus, sort of like having your very own zoom function. The price for such flexibility is $895, which inventor Stephen Kurtin considers a sterling bargain, and we've got video of him after the break explaining just how awesomely revolutionary his product is.

[Via CNET]

Continue reading TruFocals make steampunk glasses a functional, expensive reality

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TruFocals make steampunk glasses a functional, expensive reality originally appeared on Engadget on Tue, 11 Aug 2009 12:28:00 EST. Please see our terms for use of feeds.

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Sony nabs patent for everyday object motion detection: the fragile glass of your TV won’t know what hit it

All we've got to say is that they'd better be selling seats to the first living room demonstration of this tech when somebody gets cute and grabs a real baseball bat for a demo. Sony has filed a patent for technology using the PlayStation Eye which can detect regular objects in 3D space and file them away in a database for later use in gameplay. Naturally, the camera already does object motion detection of a sort with the blocky embedded codes on Eye of Judgement cards, but this seems to be taking that tech to a new level, and would imply that you won't necessarily need to be waggling that goofy ball-on-a-stick controller that Sony demoed at E3 for all upcoming motion control titles for the PS3. But for some reason we're sure we should be scared of whatever combination it does turn out to be.

[Via Joystiq]

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Sony nabs patent for everyday object motion detection: the fragile glass of your TV won't know what hit it originally appeared on Engadget on Sun, 05 Jul 2009 10:13:00 EST. Please see our terms for use of feeds.

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PS3’s motion controller: force feedback, up to four per console
Sony has taken a few of its developers aside and doled out a few new morsels of info about its upcoming PlayStation 3 motion controller. Leaving the Sixaxis as the black sheep of the family, the wand supports force feedback from the get-go, and up to four of the devices can be tracked at one time. The technology can work in conjunction with PlayStation Eye's face / head tracking and built-in mic, but naturally that's gonna tax the Cell processor more. The company's reportedly considering some joint use of the motion remote and standard controller, with the example given of holding the wand as sword and DualShock 3 as shield. We're not sure if that'll somehow count additionally toward the max wand limit -- probably not, at the expense of not using the more accurate color-changing ball tracker -- but it's definitely more cost efficient for the consumer than having to pick up another remote. Tentatively launch window is still Spring 2010, which as it turns out is infinitely more than what we know about Natal's release date at this point.

[Via Joystiq]

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PS3's motion controller: force feedback, up to four per console originally appeared on Engadget on Mon, 22 Jun 2009 22:29:00 EST. Please see our terms for use of feeds.

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