A visitor participates in an interactive vision experiment inside a science museum in China, designed to demonstrate how wide the human field of view can be. Using a curved measuring scale and visual ...

Appearing on the screen are numbers, letters or symbols. The vision test on your web browser or smartphone app checks how clearly you can make them out and then shows you the results.

Near-infrared light is invisible to humans. And yet, under the right conditions, the human eye can perceive it. Researchers from Poland's International Center for Translational Eye Research (ICTER) ...

Imagine you are looking at a manhole cover a few paces away on the street. It looks circular, but this is because of some impressive perceptual machinery in your mind. The pattern of light in your eye ...

Carlene Knight's vision was so bad that she couldn't even maneuver around the call center where she works using her cane. "I was bumping into the cubicles and really scaring people that were sitting ...

Caring for your eyes and vision are important parts of a healthy lifestyle. Vision screening is a simple test of your vision that can detect problems early. An eye exam is a detailed check of your ...

One year ago, Congress defunded public media. Now that we're 100% community funded, please become a sustaining member or increase your existing membership today. Carlene Knight's vision was so bad ...