Lab-grown retinas explain why people see millions of colors but other mammals can’t

With human retinas grown in a petri dish, researchers discovered how an offshoot of vitamin A generates the specialized cells that enable people to see millions of colors.

Retinal organoid highlighted with blue cones in cyan and green/red cones in green. Rod cells, essential for low-light and night vision, are indicated in magenta

(photo credit: Sarah Hadyniak/Johns Hopkins University)

ByJUDY SIEGEL-ITZKOVICH

FEBRUARY 5, 2024 12:14

Lab-grown retinas explain why people see millions of colors but other mammals can’t

With human retinas grown in a petri dish, researchers discovered how an offshoot of vitamin A generates the specialized cells that enable people to see millions of colors.

Dr. Maya Rosman reveals the big health bluff

Where is there more protein: In fish, chicken, or red meat?

Lab-grown retinas explain why people see millions of colors but other mammals can’t

With human retinas grown in a petri dish, researchers discovered how an offshoot of vitamin A generates the specialized cells that enable people to see millions of colors.

See more on