did-you-kno: The tiny dots you see when you look at the bright sky are actually white blood cells moving across your retina. There aren’t any blood vessels in the center of your field of vision, which is why you can’t ever look right at them. Source
did-you-kno: The tiny dots you see when you look at the bright sky are actually white blood cells moving across your retina. There aren’t any blood vessels in the center of your field of vision, which is why you can’t ever look right at them. Source
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