What causes eye color?
What causes variations in eye color?
What causes eyes to look like they change color from blue to green? Do different colored eyes see differently? Why do colors look more red in one eye and more blue in the other? Why do see colors when we close our eyes? Is there an evolutionary advantage to eye (iris) color? Why do we see colors when we close our eyes? Is it possible to change eye colour naturally? Is it possible to change your eye color? What's the distribution of eye colors in the world? What causes eyelids to turn red and dry? Why do my eyes change between blue and green? Why do I see things tinted blue in my left eye, but tinted red in my right eye even though the colors are inverted in 3D glasses? What causes red eyes? On rare occasions, my eyes become blue, while normally they have a special grey-green color. Is it normal? Why does the human eye see more shades of green than any other colour? What colour are these eyes ? What colour is this eye? What is the most popular eye color? How common is hazel eye color? I understand that brown eyed people have more rods than blue eyed people. Do they perceive color differently? How does color of light changes in the given scenario? Is it possible to permanently change the color of the eye? Can special eye drops change your eye colour? If yes, are they safe? What causes your right eye to flicker? Why do people who wear regular spectacles get dark circles around their eyes? What causes bloodshot eyes? What causes red freckles around the eyes? My right eye seems to be blurred. What could be the cause of this and what's the remedy? What color do we see when we close our eyes? What does color mean to a blind person?