Rapid, unconscious eye movements explain a famous optical illusion in which a still image appears to move. When the eye movements, called microsaccades, were suppressed, test subjects reported that ...

The rate of change in flicker sensitivity was found to be a useful predictor in determining which eyes progress from early age-related macular degeneration to geographic atrophy, according to a study.

Brown eyes contain a high concentration of melanin, which absorbs light and creates their darker appearance. Blue eyes ...

A team of Israeli scientists may have discovered why your eyes flicker when you sleep. Everyone’s heard of rapid eye movement (REM) sleep, which often occurs during dreaming. It’s previously been ...

For nearly 500 years, people have been gazing at Leonardo da Vinci's portrait of the Mona Lisa with a sense of bafflement. First she is smiling. Then the smile fades. A moment later the smile returns ...

Your body may be still, but as you dream, your eyes can flicker manically. The rapid eye movement stage of sleep is when we have our most vivid dreams – but do our flickering eyes actually “see” ...