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Analysis and Comment (9)

The mantis shrimp has 12 types of visual cones. Klaus Stiefel/Flickr

Inside the colourful world of animal vision

As humans, we live in a colourful world, but differences in visual systems means that not all animals see the world in the same way. Unlike other aspects of an object such as size or mass, colour is not…
Here’s looking at you kid. Glasses by Shutterstock

Why parents remember dental checks for children but overlook eye tests

This time of year is synonymous with going back to school and often a reminder for parents to take their children to the dentist. It’s also a perfect time to undergo a check on eyes and vision, but few…
When approaching a vertical surface, honey bees calibrate their speed to land safely. photophilde

How to land safely on a vertical surface, bee-style

Landing is arguably the most nerve-racking element of any flight. To execute a safe landing, a pilot needs to know the plane’s speed and its distance from the landing surface. The pilot’s challenge is…
With 16 photoreceptors to humans' three, mantis shrimp see the bigger picture. DiverKen

Mantis shrimp have the world’s best eyes – but why?

As humans, we experience an amazing world of colour, but what can other animals see? Some see much more than us, but how they use this vision is largely unknown. We see what we see because our eyes have…
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

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…
This is how a person without colour blindness would see these coloured test tubes. Bigstockphoto / Craig Colvin

Explainer: what is colour blindness?

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…
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

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…

Columnists (2)

Research Briefs (10)

‘Blind’ cells sense light

Melanopsin pigment in the eye could be more light sensitive than the pigment that allows for night vision, rhodopsin. A two-year…