Vision

Analysis and Comment (4)

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Opsin genes, one of the building blocks of vision, first emerged roughly 700 million years ago. ~Dezz~

Eye to the past: vision may be older than previously thought

By Wayne Davies, University of Western Australia and David Hunt, University of Western Australia

The eye is perhaps one of the best examples of Darwinian evolution. Incremental steps driven by natural selection have led to the evolution of this complex organ from its origin as a simple light-sensitive…
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This is how a person without colour blindness would see these coloured test tubes. Bigstockphoto / Craig Colvin

Explainer: what is colour blindness?

By Paul Martin

Here are six test tubes filled with coloured dyes. How many different colours do you see? Most people say six, but some people would say only two or three. There are even some (very rare) people who see…
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Could your brain be anticipating what’s there before you even turn your eyes? Joe Fakih Gomez Photography

Out of sight, but still in mind: the mysteries of peripheral vision

By Mark Williams

As you read this article your eyes will move so the words fall on the central part of your vision. This region is called the fovea and it has excellent resolution when compared to your peripheral vision…
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While some cases of blindness are treatable, there’s a group of patients for whom the development of a bionic eye is the only possible treatment. Jeremy Kunz

We have the technology – progress in the race to the bionic eye

By Anthony Hall, Monash University

The path to development of the bionic eye is blindingly clear but progress is slow. There’s been an explosion of research into retinal and brain-based bionic eyes and the race to develop one has started…

Research Briefs (5)

Fly larva brain makes up for poor vision

University of Virginia

The fly larva brain’s ability to process visual information can make up for low visual input. Researchers discovered that…

Participants (25)