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Eye

Diabetic autonomic neuropathy is a condition that can occur in both type 1 and type 2 diabetics, compromising the autonomic nerves that control the gastrointestinal system, the heart and other vital organs. Among other things, it can cause arrhythmias, fainting, incontinence and an increased risk of bacterial infections. Thanks to a device being developed in Taiwan, however, it may soon be possible to detect the condition earlier, thus limiting its effects. Read More
Earlier this year, Google announced that it was testing a glucose-monitoring contact lens. The lens is aimed at helping people with diabetes better manage the disease. A partnership has now been announced with Alcon, which is the eye care division of Novartis, to commercialize the technology. Read More
Medical researchers working with human stem cells have discovered a way to improve regrowth of corneal tissue in the human eye. Using a molecule known as ABCB5 to act as an identifying marker for rare limbal stem cells, the researchers were able to use antibodies to detect ABCB5 on stem cells in tissue from donated human eyes and use them to regrow anatomically correct, fully functional human corneas in mice. Read More
The fluid pressure inside the eye, known as intraocular pressure (IOP), is an important metric for evaluating a person's risk of glaucoma. There are currently two different ways to measure IOP, both of which require a trip to the ophthalmologist. A prototype sensor developed by engineers at the University of Washington is designed to be placed permanently in a person's eye to track changes in eye pressure and more effectively manage the disease. Read More
The eye is often compared to a camera, but although its basic design is as simple as an old-fashioned box Brownie, its detailed structure is more complex than the most advanced electronics. This means that, unlike simpler organs, studies of retinal disease rely heavily on animal studies, and treating such illnesses is extremely difficult. One ray of hope in the field comes from researchers at Johns Hopkins, who have constructed a functioning segment of a human retina out of stem cells that is able to respond to light. Read More
When soldiers or other people sustain eye injuries, retinal detachment and vision loss can result if the eye's vitreous gel isn't kept from leaking out. Given that Band-Aids can't be placed directly on the eyeball, however, a team of scientists from the University of Southern California has created an alternative – reversible eye glue. Read More
When it comes to thoroughly assessing the condition of someone's eyes, it's usually necessary to utilize large, expensive contraptions such as those found in an ophthalmologist's office. While that's OK in some situations, physicians in rural areas or developing nations might not have access to such technology. Additionally, emergency room personnel typically need information on-the-spot, ASAP. That's why two scientists from Stanford University have created the EyeGo system, which allows smartphones to do the job. Read More
The worst has happened. You receive an emailed kidnap demand with a picture of your loved one in dire straits. You contact the authorities, and in a flash (relatively speaking), they have identified the kidnapper and possibly some accomplices, and are well on their way toward recovering the victim. How did this happen? By identifying the faces of the kidnappers caught in the reflection of your loved one's eyes. Read More
If you're like a lot of people, you don't make an annual trip to the ophthalmologist to get your eyes checked ... and you really ought to, in order to catch any problems before it's too late. If it were possible to get them checked at a regular doctor's office or clinic, though, perhaps you might do so more often. That's one of the reasons that a team at MIT have designed a new hand-held retinal scanner, that can quickly and easily be used anywhere. Read More
Imagine if conditions that presently cause blindness could be treated by simply by fabricating new tissue, and using it to replace the defective part of the retina. We may not be at that point yet, but we've definitely taken a step closer, thanks to research being conducted at the University of Cambridge. Scientists there have successfully used an inkjet printer to "print" rats' retinal cells onto a substrate, paving the way for the creation of custom-made eye-repair material. Read More
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