Posts from the ‘eyes’ Category

discoverynews:

Warning: This is cool.

neurosciencestuff:

Researchers from the Senckenberg Research Institute in Frankfurt have revealed one of the oddest spiders ever discovered. The Sinopoda scurion is the first eyeless huntsman spider in the world.

‘I found the spider in a cave in Laos, around 100 kilometres away from the famous Xe Bang Fai cave,’ said Peter Jäger, head of the arachnology section at the Senckenberg Research Institute in Frankfurt. ‘We already knew of spiders of this genus from other caves, but they always had eyes and complete pigmentation.

The team believe the regression of the eyes is attributable to living permanently without daylight.

Creepy, but definitely cool. It’s like an arachnid Daredevil.

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The idea of tetrachromatism has been around for a while, but it has been hard to prove until recently. Due to mutations that cause color-blindness, the daughters of color-blind men have the possibility of having 4 cones to our normal 3. The result is that they see many, many more shades of color than we do. 

The Search for Tetrachromats: The human masters of the color world

discoverynews:

Self-Powered Bionic Eye to Restore Eyesight

A team from Stanford University and the University of Strathclyde in the United Kingdom has created a thin prosthetic chip from silicon that electrically stimulates neurons in the retina. Unlike other retinal implants, the device is photovoltaic so it wouldn’t require complicated surgery for a battery-powered setup.

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