A close-up photograph of what appears to be a light-brown human eyeball shows the organ's expansive, cavernous depths surrounding a seemingly bottomless, black pit that, together, mimics the intricate ...

The new model mimics the structure and function of the human conjunctiva in a lab dish, even producing its own tears. When you purchase through links on our site, we may earn an affiliate commission.

Discover the limits of human sight: from a 3-mile horizon and candle flames 2.8 km away to seeing galaxies 2.5 million ...

On August 6, 2025, researchers in California revealed how freshwater apple snails can regrow lost eyes. The study, published in Nature Communications, shows the process mirrors human eye anatomy and ...