Why Do We Have Different Eye Colors?
Melanin, the same compound that determines skin and hair color, is also responsible for different eye colors.
Melanin, the same compound that determines skin and hair color, is also responsible for different eye colors.
The human eye is complicated, and there are a lot of ways something can go wrong with it.
People have been using tools to help them see clearly since at least 60 A.D.
Not all vision problems can be corrected with contact lenses or glasses.
Sleep deprivation hits the body and mind a lot like alcohol, but how does it affect our eyes?