Eyes are not just windows to the soul—they're kaleidoscopes of human diversity. From deep brown to icy grey, eye colours span ...

Blue is not the rarest eye color In fact, it’s the second most common in the United States after brown eyes. According to the American Academy of Ophthalmology, about 27% of Americans have blue ...

Looking at the color of a person's eyes — whether they're green eyes, brown eyes, or blue eyes — when recommending a new hair color is something professional hairstylists do all the time, and ...

Horses have beautiful blue or brown eyes, depending on their genetics. Breeds with white markings or light-colored coats, such as the Akhal Teke, are more likely to develop blue eyes.

The brown eyes of a 6-month-old boy turned a deep indigo blue after he was given the antiviral favipiravir to treat COVID-19. This case is unusual, but it's not the first time doctors have ...

The stroma in brown eyes contains high levels of brown-to-black melanin, so this is the color we see. For grey eyes, it’s a similar phenomenon to blue, except the stroma contains more collagen.

Eiberg's theory is that a mutation occurred between 6,000 and 10,000 years ago that switched on the ability for the gene to dilute brown eyes to blue. "Originally, we all had brown eyes," he said ...