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Blind

— Pets

High-tech harness lets the blind check on their guide dogs

Humans communicate primarily in a verbal manner, while dogs rely more on visual cues. While this can make communication between the two species challenging at the best of times, it's particularly difficult when the human is unable to see the dog – as is the case with blind people and their guide dogs. As a result, it may not always be possible for owners to know when their guide dogs are stressed. An experimental new harness, however, may be able to help.

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— Biology

Researchers simulate what "bionic sight" may look like

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

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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