eyesight
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EyeSight brings its gesture controls to Android tablets, Windows-based devices
EyeSight has been bringing its hand-waving UI to all sorts of mobile devices for some time now, and it's now expanded things yet again. Following up its launch on Android last summer, the company has announced that its gesture recognition software has now also been tailored specifically for Android tablets and other "computer-based" Android platforms, and it's announced that it's now available for Windows-based devices as well. As before, the software is able to work with just about any built-in camera, and the company says that it has been "highly optimized" for mobile platforms, with low CPU and memory requirements. It's not something available directly to users, though -- it's up to developers to license it and include the functionality in their applications. Head on past the break for an idea of how it works -- just try to ignore that conspicuously out of place iPad at the beginning of the video.
Nintendo 3DS warning label: children under six shouldn't use 3D mode
Ever since the device was first shown at E3, we've been under the impression that the Nintendo 3DS is too good to be true -- three-dimensional, portable versions of beloved N64 games? That's un-possible. The other shoe we've been waiting to drop might have just done so with Nintendo's recently released 3DS warning label; not only does it caution adults to stop using the device if they start to feel ill, it also says that children under six shouldn't use the handheld's 3D functionality at all, as it may affect the development of their poor, innocent eyes. This isn't quite as explosive a story as the mainstream media will likely make it out to be -- 3D display experts have long discussed the possible repercussions the technology has on eyesight. The worry isn't that displays like the one included in the 3DS will actually harm your vision, but that the way it "tricks" your eyes into seeing 3D might impair the way you actually see depth, which is, of course, the coolest dimension. Of course, there's no firm research confirming these worries, but Nintendo's playing it safe -- the 3DS' parental controls will allow parents to lock the device into 2D mode for their under-six progeny.
Artificial retina reconstructs normal vision in mice, human trials next
Scientists have been working on artificial retinas for years, and while the main focus of research has been to increase the amount of light captured, a study led by Sheila Nirenberg, PhD, has taken a different tack. The new system being devised at Weill Cornell Medical College better mimics frontline photoreceptor cells, making it easier for the ganglion cells to output a more accurate image. "If you want to really restore normal vision, you have to know the retina's code," Nirenberg said. "Once you have that, the door is open to the possibility of restoring normal vision." When researchers performed tests with mice, they found that those with the new system reconstructed more details (the second image, above) than those without (image three, above). "Incorporating the [more accurate] code jumped the system's performance up to normal levels - that is, there was enough information to reconstruct faces, newsprint, landscapes, essentially anything," Nirenberg said. The next step? Coordinating with other researchers to test the technology on human participants.
Robins can see magnetic fields with a keen right eye
When it's time to migrate, how do birds find north? The going theory is that some avians can literally see the magnetic fields. Talk about a birds-eye view. However, a recent experiment shows that ability is hampered unless the creature in question has good vision in the right eye. Outfitting a variety of European robins with goggles frosted on one side and clear on the other -- but transmitting the same amount of light to both eyes -- a team of researchers at Goethe-Universitat in Germany discovered that the birds with blurred vision in their right eye were disoriented, while those with obscured sight on the left headed north without delay. Since we mastered the compass ages ago, there are precious few lessons here for robotic bird builders -- but perhaps once these scientists are satisfied with ocular experiments, they'll get around to figuring out how carrier pigeons manage those cellphone-smuggling return flights.
Telescopic eye implant approved by the FDA
We love eye implants, and we've seen our share of them, and this one is pretty sweet (although it isn't the creepiest by a long shot -- that prize would go to the one that uses a human tooth to hold its lens). In the works for well over a year, and approved by the FDA a couple days ago, VisionCare Ophthalmic Technologies' implantable miniature telescope is intended for patients over 75 years of age who are suffering from end-stage macular degeneration. As with any tricky new surgery, this one is not without risks, including the need for a corneal transplant due to the device's size. According to CBC News, in clinical testing seventy-five percent of over 200 patients "had their vision improve from severe or profound impairment to moderate impairment," and there are two more studies on the way: one will follow up with existing patients, while the other will outfit 770 new patients with the device. The cost? $15,000.
Amblyopic six-year-old uses Nintendo DS to regain normal eyesight
Ben Michaels was on the verge of losing sight in his right eye. The solution? Two hours of Mario Kart DS a day -- using only his bad eye -- until the condition improved. And improve it did. We wonder if using the comparatively dim original DS handheld helped... and we're dying to know what fantastic anecdotal treatments the autostereoscopic Nintendo 3DS might afford civilization at large.
EyeSight's hand-waving, gesture-based UI now available for Android (video)
Sure, the Evo's front-facing camera enables you to call your snookums and let them see your mug while you two exchange sweet nothings. But, wouldn't it be much better if you could tell your phone to talk to the hand? Now it can... at least in theory, with the availability eyeSight libraries for Android. EyeSight's Natural User Interface relies on a phone's camera to detect hand motions, enabling developers to write apps that change tracks, ignore callers, and display text messages with a wave. The down-side is that those apps need to be specifically written to work in this way, and while the libraries have been available for Nokia handsets since last year, right now we're seeing a whopping four programs that use it (including the hugely important "Fart Control," which turns your phone into a "motion detecting fart machine"). So, you should probably not expect a revolution here either. Video demo from the Nokia days is embedded just below.
NC State's refreshable Braille display could revolutionize reading for the blind
While many in Raleigh are wondering whatever happened to the glory days of 1983, Dr. Neil Di Spigna and company are doing far more productive things at NC State. It's no secret that the holy grail of Braille is a tactile display that could change on a whim in order to give blind viewers a way to experience richer content (and lots more of it) when reading, but not until today have we been reasonably confident that such a goal was attainable. Gurus at the university have just concocted a "hydraulic and latching mechanism" concept, vital to the creation of the full-page, refreshable Braille display system. As you may expect, the wonder of this solution is the display's ability to erect dots at the precise points, retract them, and re-erect another set when the reader scrolls through a document or presses a "link" on a website. We're told that the researchers have already presented their findings, and if all goes well, they'll have a fully functioning prototype "within a year." Here's hoping a suitable replacement to Lee Fowler is also unearthed during the same window.
Subretinal implant successfully tested on humans, makes blind narrowly see
How many scientists does it take to properly install a lightbulb? When that lightbulb is an implant that stimulates retinal photoreceptors to restore one's sight, quite a few -- even if they disagree whether said implant should be placed on top of the retina (requiring glasses to supply power and video feed) or underneath, using photocells to channel natural sunlight. Now, a German firm dubbed Retina Implant has scored a big win for the subretinal solution with a three-millimeter, 1,500 pixel microchip that gives patients a 12 degree field of view. Conducting human trials with 11 patients suffering from retinitis pigmentosa, the company successfully performed operations on seven, with one even managing to distinguish between similar objects (knife, fork, spoon) and perform very basic reading. Though usual disclaimers apply -- the tech is still a long way off, it only works on folks who've slowly lost their vision, etc. -- this seems like a step in the right direction, and at least one man now knows which direction that is.
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.
Artificial lens implant promises to give patients 'HD vision'
Implanted lenses may be old hat compared to newfangled sight restoration techniques involving radiation beams and teeth, but it looks like some eye surgeons in the UK have now come up with a few new tricks that promise to let patients see better than ever. The new process apparently starts out like a standard procedure for cataracts, but makes use of lenses made from light-sensitive silicone that can be fine tuned several times after the surgery, eventually giving the patient "HD vision" that's said to be better than 20/20. The lenses can apparently even be adjusted for either bifocal or varifocal use, eliminating the need for some patients to wear glasses at all. Head on past the break for a video. [Thanks, Esevila]
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.
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]
BrainPort lets you see with your tongue, might actually make it to market
We first saw the crazy BrainPort in 2006, but the intervening time hasn't been wasted by its developers, who've brought the quirky visual aid to the cusp of commercial viability. If you'll recall, the device translates signals from a head-mounted camera to electrical pulses that lightly zap your tongue in response to visual stimuli -- early results have shown people can regain a good bit of their spatial awareness and even read large writing. The next step is FDA approval, which is expected by year's end, meaning that the BrainPort could arrive as early as 2010. There is a steep entry fee though, with prices expected to begin at $10,000, but the very fact you'll be able to buy it is a milestone in our book. Edifying video after the break. [Thanks, Toy]
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]
Researchers develop braille for vibrating touchscreen devices
digg_url = 'http://www.engadget.com/2009/03/31/researchers-develop-braille-for-vibrating-touchscreen/'; In braille, a character is made up of six dots laid out on a two by three matrix -- not something that can really be conveyed using capacitive touchscreen technology. Working with a Nokia 770 Internet Tablet, researchers in Finland have developed a method for piezoelectric touchscreen devices that uses a single pulse of intense vibration to convey a raised dot, and a longer vibration made up of several weaker pulses to represent a missing dot -- spelling out letters that can be easily read by touch. It took a while for volunteers to get used to this method, but once they had they were able to read a character in as little as 1.25 seconds. Now that they have letters down, the team is moving on to words and sentences -- with an eye towards developing text-to-braille software sometime in the future.
Study finds 'action' video games can improve vision
So, we've got good and bad news for you. First, the good news: A study conducted by the University of Rochester has found that "the very act of action video game playing enhances contrast sensitivity." Rather, playing lots of Call of Duty might actually help keep your eyes in shape and the contrasts in color sharp as you age. But now, the bad news: Those 100+ hours you sunk into Fallout 3 may not have helped. The study explains that, of the "expert video game players" tested, the "VGP group" (group playing "action" games Unreal Tournament 2004 and Call of Duty 2) exhibited "enhanced contrast sensitivity" versus the "NVGP group" (the folks playing "non-action" game The Sims 2), especially in the light of the population differences' interactions with spatial frequencies. Wait, WHAT?! In so many words, majority percentages of the "VGP group" were clustering together on the high end of the scale while "NVGP group" numbers were clustering on the other end. Professor Gary Rubin, of the University College London Institute of Ophthalmology, sums up these findings rather nicely, saying, "This is a small study, showing a small effect, but it was carefully done, and merits further investigation."[Via BBC]
Videogame training may improve eyesight, no word on the health benefits of Mind Flex
You know, the benefits of videogames just keep adding up. According to a study published in Nature Neuroscience, video game training may help people improve contrast sensitivity, or the ability to differentiate between shades of gray. Among the two groups studied, the most improvement was noted among folks who played games which required precise, visually guided aiming actions, such as Call of Duty 2 and Unreal Tournament 2004. "When people play action games," said Daphne Bavelier, a professor of brain and cognitive sciences at the University of Rochester, "they're changing the brain's pathway responsible for visual processing. These games push the human visual system to the limits and the brain adapts to it, and we've seen the positive effect remains even two years after the training was over." Now that we've established that the Xbox can be part of a healthy lifestyle, it would be irresponsible of us not to play it more often.[Via CNet]
You may be too short-sighted to enjoy HDTV, study finds
If Vision Express was looking for some attention, it just got it. A recent study by the optician chain found that 60 percent of Britons had avoided an eye test over the past year, with that number rising to 79 percent in Scotland. Phillip Hyde, dispensing optician and head of professional services at the firm, was quoted as saying that "even a marginally short-sighted person sitting on a sofa watching an HD broadcast may not see the full benefits in enhanced image quality." As if that wasn't comical enough, he continued by saying: "If you're investing in HDTV, you ought to have your eyes checked to make sure you get the full benefit." You heard it here first, folks -- factor in the cost of an eye exam before buying your next HDTV, or you'll regret it. Forever.[Image courtesy of Lenslinger]
Glaucoma monitoring contact lenses crafted at UC Davis
Far from the first circuit-laden contact lens we've laid eyes on (ahem), researchers at UC Davis have more than bragging rights in mind with their "smart" contacts. The devices are infused with a "pattern of conductive silver wires, which could be used to measure pressure inside the eye." The material, dubbed polydimethylsiloxane (PDMS), would boast antimicrobial properties and could enable scientists to better study glaucoma. How so? By sending pressure data to computers sans wires. Better still, the contacts also include the ability to automatically dispense medication into the eye, making this beneficial in more ways than one. The creators are expected to apply for approval to begin testing the lenses in humans here shortly, and barring any unforeseen (sorry, totally unintentional there) setbacks, we would hope these could be put to use within the next few years.[Via medGadget]
