A study found that radiologists who have years of training to ignore visual distractions were less susceptible to the Ebbinghaus illusion.

Eyes may be the window into a man's soul, but they are also the entry by which some scientists are studying brain behavior.

A mind-bending visual puzzle challenges viewers to locate two cleverly concealed dolphins within a vibrant, artistic mosaic. Supposedly, only those with exceptional IQ and eyesight can spot them in ...