There are millions of them in our eye’s retina—special photoreceptor cells known as rods and cones that allow us to perceive a wide range of light intensities and colors. "There is a critical need to ...

A 291-day-old retina organoid. Red and green cone photoreceptors appear green, blue cone photorectors appear blue, and rod photoreceptors appear red. Scientists have grown simplified human retinas ...

Share on Pinterest New research involving cones and rods in the retina could lead to new treatments for vision loss. Gregory Adams/Getty Images Cone photoreceptors in retinal degeneration have been ...

Dr. Wolf M. Harmening from University Eye Hospital Bonn, together with American colleagues, studied color vision by probing individual sensory cells - photoreceptors - in the human eye. The results ...

Zebrafish are known to detect color and brightness with the pineal gland, which is part of the brain. How they do so is now being elucidated. We see color because photoreceptor cones in our eyes ...

When researchers studied the eyes of Common Bluebottles, a species of swallowtail butterfly from Australasia, they were in for a surprise. These butterflies have large eyes and use their blue-green ...

Researchers have discovered that power-producing organelles in the eye's photoreceptor cells, called mitochondria, function as microlenses that help channel light to these cells' outer segments where ...

Q: What can you tell me about feline vision? I've heard that cats see well in the dark, but I still think we should leave a nightlight on so our cats can find their way to water bowls and litter boxes ...

Dogs have a reputation for their impeccable smell and hearing — not so much for their vision. But that stereotype is a bit short-sighted. For one, it’s a misconception that dogs see in black and white ...