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Blind


— Science

Researchers simulate what "bionic sight" may look like

By - August 7, 2015 2 Pictures

It's easy to imagine bionic sight as crystal clear and even enhanced, like the augmented body parts in science fiction. But the reality could be very, very different for a typical bionic eye recipient. Researchers at the University of Washington developed visual simulations that indicate what the world might look like to people with retinal implants. The resulting images are, in a word, blurry.

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— Medical

Implantable pump to regulate fluids in the eye and preserve vision

By - July 2, 2015 1 Picture

When its levels are slightly off-kilter, eye fluid can create pretty big problems for our vision. When blockages occur they can lead to a build up in pressure that destroys the optic nerve and causes blindness, a condition we know as glaucoma. In contrast, a lack of fluid can cause the eye to cave in and stop functioning, a disease known as phthisis bulbi. Currently, little can be done about these irreversible conditions once they take hold, but Fraunhofer researchers have a potential solution in the works by way of a microscopic pump that can be implanted in the eyeball to regulate ocular pressure.

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— Medical

Newly identified protein may hold key to preventing diabetes-induced blindness

By - May 25, 2015 1 Picture

Diabetic retinopathy is one of a number of nasty effects diabetes can have on the human body. The disease sees the development of leaky blood vessels in the eye that over time lead to permanent loss of vision. Though it is the leading cause of new cases of blindness in American adults, its progress can be slowed by certain drugs or laser treatment. But research has now uncovered a new protein found to drive the condition, raising the possibility of preventing it altogether.

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— Health and Wellbeing

Wearable collision warning device for the visually-impaired

By - March 29, 2015 1 Picture
For people with reduced vision, getting around safely without walking into obstacles can be tricky. Those with decent central vision but whose peripheral sight is fading or lost are particularly at risk because they aren't conditioned to be alert for oncoming dangers they can't see. But a new pocket-sized device that sits on a person's chest may make walking much safer for these people and others with visual impairments by warning of impending collisions. Read More
— Medical

Photoswitch therapy restores vision to blind lab animals

By - December 9, 2014 3 Pictures
A new genetic therapy that helped blind mice and dogs respond to light stimulus could restore sight to people who suffer from diseases such as retinitis pigmentosa (a gradual loss of vision from periphery inwards). The therapy uses chemicals known as photoswitches, which change shape when hit with light, to open the channels that activate retinal cells. Treated mice can distinguish between steady and flashing light, while dogs with late-stage retinal degeneration also regain some sensitivity to light. Read More
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