Image of Day: Retinas from Scratch
Image of Day: Retinas from Scratch

Image of Day: Retinas from Scratch

Human eye organoids could help scientists develop therapies for colorblindness.

Ashley Yeager

Ashley started at The Scientist in 2018. Before joining the staff, she worked as a freelance editor and writer, a writer at the Simons Foundation, and a web producer at...

View full profile.

Learn about our editorial policies.

Oct 12, 2018

ABOVE: Embryonic stem cell–derived human retinal organoid

Human retinal organoids grown from embryonic stem cells reveal that our blue-light-detecting cells develop first, followed by the red- and green-light-detecting cells. Levels of thyroid hormone act as the molecular switch that spurs development and differentiation of the red and green color-sensing cells, researchers reported yesterday (October 11) in Science. The finding may help scientists better understand why preterm babies, who have less exposure to the hormone because they spend less time in the womb, have higher risks of vision disorders.

Researchers describe the development of human eye organoids.
Courtesy of Jhu

K.C. Eldred et al., “Thyroid hormone signaling specifies cone subtypes in human retinal organoids,” Science, 362:eaau6348, 2018.

Interested in reading more?

Image of Day: Retinas from Scratch

The Scientist ARCHIVES

Become a Member of

Receive full access to more than 35 years of archives, as well as TS Digest, digital editions of The Scientist, feature stories, and much more!
Already a member?