The new color, "olo," is a hyper-saturated version of blue-green Getty Scientists conducting targeted retinal stimulation claim to have discovered a new color. In a study published in Science Advances ...

Medically reviewed by Johnstone M. Kim, MD Key Takeaways Gray and green eye colors are the rarest in the world.Eye color is ...

A team of scientists has found a way to unlock a color that doesn't exist in the natural world. Named "olo," this new shade has only been seen by five people so far. It's described as a vivid ...

Scientists have created a new platform called 'Oz' that uses laser light to control up to 1,000 photoreceptors in the eye at once. Using Oz, the researchers showed people images, videos and a new, ...

Color blindness, or color vision deficiency, causes a person to see colors differently from most other people. There are several types of color blindness. Color vision deficiency or loss has multiple ...