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Eye

— Health and Wellbeing

Involuntary eye movement may provide definitive diagnosis of ADHD

By - August 14, 2014 1 Picture
If a child who's simply very active is mistakenly diagnosed with Attention Deficit Hyperactivity Disorder (ADHD), they can end up on pharmaceuticals such as Ritalin unnecessarily. The problem is, it can be quite difficult to determine if someone actually has ADHD, and misdiagnoses are common. Now, however, researchers from Tel Aviv University have announced that analyzing a patient's eye movements may be the key. Read More
— Medical

Wearable pupillometer could detect dangerous diabetic condition earlier

By - July 29, 2014 2 Pictures
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
— Medical

Corneas regrown using human stem cells

By - July 4, 2014 2 Pictures
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
— Medical

In-eye sensor to keep a watch on changes in intraocular pressure

By - June 16, 2014 2 Pictures
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
— Science

Three-dimensional light-sensitive retinal tissue grown in lab

By - June 14, 2014 1 Picture
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
— Medical

EyeGo adapters let you perform eye exams with a smartphone

By - March 11, 2014 2 Pictures
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
— Science

Facial recognition is in (the reflection of) the eye of the beholder

By - January 16, 2014 6 Pictures
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
— Medical

Portable scanner designed to make eye exams quicker and easier

By - December 23, 2013 2 Pictures
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
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