Yes, ruby eyes, or more accurately, the appearance of red or violet eyes, are real, albeit extremely rare in humans.
While actual ruby or violet pigment isn't responsible, the appearance comes from the blood vessels within the eye. This effect is usually observed in individuals with very little melanin, such as those with albinism.
Factors Contributing to Red/Violet Eye Appearance:
- Lack of Melanin: Melanin is the pigment responsible for eye color. In its absence, the blood vessels become more visible.
- Blood Vessels: The appearance is due to light reflecting off the blood vessels in the iris and retina.
- Albinism: This genetic condition often results in reduced or absent melanin production.
Why "Ruby Eyes" is a Misnomer:
The term "ruby eyes" can be misleading. The appearance isn't due to an actual ruby-colored pigment. Rather, it's an optical effect caused by the underlying vascularity of the eye showing through due to a lack of pigmentation. The eye color may also appear violet due to the way light scatters.
