How the 20/20 Vision Scale Works

With more than 150 million people in the United States (nearly half of the population) requiring some form of corrective eyewear to compensate for visual impairment, chances are you have had your eyesight graded on the 20/20 scale before. If you haven't, you have probably heard other people saying they have "20/20… » 12/31/13 6:00am 12/31/13 6:00am

The Artificial Insect Eye That Will Give Sight To Tiny Drones

Humans see the world through a pair of high resolution, single lens eyes that allow us to adjust focus and pinpoint fine details. But simpler creatures, like insects, instead rely on compound eyes that have lower resolution but offer a much wider distortion-free field-of-view that's actually better suited for… » 5/21/13 2:29pm 5/21/13 2:29pm

Researchers Will Restore Damaged Depth Perception with Electronic Eyes

Our depth perception doesn't work without two eyes. However an estimated 285 million people worldwide suffer from some form of visual impairment in at least one theirs. The loss of sight in just one eye also means the loss of one's ability to accurately judge short distances. However, a team of researchers have… » 1/25/13 11:30am 1/25/13 11:30am

The Science of Sight, in Interactive Cartoon Form

Our eyes are wonderfully complex biological devices, which most of us take for granted. But do you know that our perception of detail varies massively across our field of view? Or understand why we can walk in the dark but not read? This interactive cartoon does a great job of explaining those complex ideas and more,… » 7/11/12 4:21am 7/11/12 4:21am

The Solar Power Eye Implant Which Restores Sight

Electronic implants which restore sight to the blind aren't anything new, but one of their major stumbling blocks has been the need for an external power source. Now, that's about to change, because a team of researchers has built a digital implant out of infrared-slurping photovoltaic pixels—so it can power itself. » 5/14/12 11:20am 5/14/12 11:20am