eyesight
Latest
Artificial corneas could save eyesight
While there's been no shortage of research surrounding the saving of one's eyesight, the EU-funded CORNEA project has now developed an artificial cornea that is showing promise in trials. Reportedly, scientists at the Fraunhofer Institute for Applied Polymer Research IAP in Potsdam and the Department of Ophthalmology at the University Hospital of Regensburg have created a device that is "based on a commercially available polymer which absorbs no water and allows no cells to grow on it." Put simply, the cornea implant can "firmly connect with the natural part of the cornea, while the center remains free of cells and therefore clear." Apparently, early versions have already been successfully placed in the eyes of rabbits, and if ongoing testing goes smoothly, they'll be headed for humans as early as next year.
Whiteboard projectors are / aren't dangerous: UK schools edition
Don't look now (for serious, we really mean it), but yet another health scare is taking those in England by storm, and this time whiteboard projectors are to blame for inducing panic in the hearts of mums and dads everywhere. The quarter-million academic projectors that have been installed all across the UK are now the focal point of an ongoing study, which suggests that a "viewer's peripheral retina could be overexposed even when they are not actually staring directly into the beam." Protesters are suggesting that the brightness be toned down to no more than 1,500 lumens, and a number of sensitive teachers and students alike have reported "dazzle effects" after looking at the board for an extended period of time. We could wonder if anyone actually expects the school systems to revert back to chalk in order to get things done, but more interestingly, who's up for swapping their PJ out for an RPTV (you know, before your retinas dissolve)?[Via The Register]
Software system to enable visual prosthesis learning
Years back, scientists at the University of Bonn reckoned a visual implant would cure blindness, but unfortunately, the results were less than positive. While many alternatives have surfaced in the meantime, gurus at the institution are hitting back yet again with another option of their own, as the researchers introduced a software system that enables visual prosthesis to "learn" how to interpret sights in a way that the brain can understand -- something the original implementation had difficultly accomplishing. Essentially, an artificial retina "must learn to generate signals that are useful for the brain," and while the group's software should assist users with "flexible" central visual systems to garner new abilities in sight, they warn against "expecting miracles" too soon.[Via MedGadget]
