On the road at night or on a tennis court at dusk, the eye can be deceived. Vision is not as sharp as in the light of day, and detecting a bicyclist on the road or a careening tennis ball can be tough.
Oct 17, 2012
3
0
(Medical Xpress) -- From sacred religious texts to books to movies, light and darkness have always symbolized good and evil.
Mar 9, 2012
2
0
Vision is amazing because it seems so mundane. Peoples' eyes, nerves and brains translate light into electrochemical signals and then into an experience of the world around them. A close look at the physics of just the first ...
Nov 10, 2011
0
0
After being hit in the eye by a stone, a detached retina left a man blind in his right eye. Despite surgery to remove a cataract when the man was 23, which temporarily restored light perception, the patient was completely ...
Jun 17, 2011
0
0
