“The eyes are the window to the soul,” notes a timeless quote. And while your eyes also bring the world your way, the origins of eye color are fascinating and even mysterious. To help lay out the ...

That mirror you look into every morning is revealing more about your pain tolerance than you ever imagined. The same genes that determine whether you have brown, blue, green, or hazel eyes are also ...

The previous testing methods have shown inconsistencies, including inadequate standardization in the administration of current color vision tests. These factors have raised concerns about whether the ...