There are three main forms, each offering a fascinating variation in color. Complete heterochromia: Each eye has a completely different color. Imagine a green eye and a hazel eye, or a blue eye ...

The team, who experimented on themselves and others, hope their findings could one day help improve tools for studying color ...

Clients’ motivations range as widely as custom eye color options, which span the natural spectrum from icy blue to hazel. Some, like Miranda, believe different colors better suit their appearance.