The authors suggest that this 'eye' did not exhibit image-forming capabilities, and that its function was instead non-visual (possibly circadian). Comparison of photoreceptor ultrastructure across ...

The human eye is reasonably fast ... which improve their owners’ vision by focusing light onto underlying photoreceptors. But unlike opsins, with their single dynasty, crystallins are unified ...

And we use essentially the eye, at least the human eye, like a camera. Instead of a film, you have a retina in the back, with photoreceptor cells, and this makes the eye a very fascinating organ.

By contrast, a fly's compound eye divides incoming light among thousands of separate units, each with its own lens and photoreceptors. Human, fly, and squid eyes are mounted in pairs on their ...

subtle eye movements, and the unique arrangement of photoreceptor cells in the human eye. Published in the journal eLife, the research provides new insights into how our visual system achieves ...

Nocturnal geckos have superb vision in dim light - their eyes are 350 times more sensitive to colour at night than a human's (see for yourself with ... to focus light onto its photoreceptors. A ...

The researchers plan to refine the protocol and test against cells in photoreceptor degeneration that are more closely related to the human eye. If practical, they hope to start clinical trials.

In the case of the common and well–studied blue tit bird, the male and female appear visually identical to the human eye.