Random Eye Facts

    19 facts tagged with Eye Facts

    Optical illusions occur when what the eyes see conflicts with what the brain expects.
    75
    When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
    1k
    Tigers can see 6 times better at night than humans.
    305
    There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
    22
    Sectoral Heterochromia
    Sectoral Heterochromia
    Sectoral heterochromia is an eye condition where one part of the iris appears different to the rest. It's generally a result of excessive pigment.
    60
    Only about 2% of the world population has green eyes.
    36
    The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
    21
    The human eye blinks an average of 4,200,000 times a year.
    233