Tagged With vision

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Like a baseball player running to make a catch, dragonflies are also capable of predicting the trajectory of a moving object, typically its next meal. New research is revealing the mechanisms behind this complex cognitive task, which was once thought to be exclusive to mammals. It's hoped that these insights will lead to innovations in robot vision.

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While prepping a 67-year-old female patient for routine cataract surgery at England's Solihull Hospital, physicians noticed a strange bluish blob in one of her eyes. On closer look, the blob turned out to be 17 contact lenses stuck together. Another 10 lenses were subsequently discovered in the same eye. The surgeons have never seen anything quite like it.

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Ground-nesting wasps are incredibly good at navigating the world, particularly when it comes to re-locating their nests. By tracking the intricate flight patterns and visual focus of these insects, scientists have simulated what a wasp sees as it makes its journey back home.

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How can a person see around a blind corner? One answer is to develop X-ray vision. A more mundane approach is to use a mirror. But if neither are an option, a group of scientists led by Genevieve Gariepy have developed a state-of-the-art detector which, with some clever data processing techniques, can turn walls and floors into a "virtual mirror", giving the power to locate and track moving objects out of direct line of sight.

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A company called EnChroma has built a pair of glasses that claims to restore colour vision for the colourblind. Predictably, the internet has erupted with excitement. But it's not the first instance in which a piece of technology has made this bold assertion, and the science behind colour perception isn't straightforward. We decided it was time to figure out what's really going on.

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Our eyes are a fundamental part of the human sensory system -- but they're complex things that can easily go wrong. Here are 23 facts about your windows to the world, including 11 things that can go horribly wrong.

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The dress is back -- this time with peer-reviewed science. Months after the blue-and-black (OR IS IT white-and-gold?) dress provoked a bajillion arguments, scientists come armed with new studies. But they still can't solve the fundamental mystery behind the dress.

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When I called up the Columbia scientist whose mouse experiments inspired two biohackers to squirt chemicals in their eyes to induce "night vision", I expected, at best, cautious optimism. I did not expect him to tell me that, oh yeah, once, in his younger days, he hooked himself up to an IV and tried it, too.

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Do you see Albert Einstein or Marilyn Monroe? If you see Einstein, that means your vision is good! If you see Marilyn Monroe, your eyes need some help. In the GIF above, you should see both as it zooms in. When the image is further away and smaller, you'll see Marilyn. As it comes closer, you'll see Einstein. The quicker you see him, the better your eyesight.