In an ant's world, the smaller you get the less you can see. So how does that affect an ant's ability to avoid hitting any obstacle as it walks about?
Some thought technology would make braille redundant – but the real threat is a lack of education and resources.
There are many people who are astonished to discover that their complete lack of ability to picture visual imagery is different from the norm.
To learn about how humans, animals and insects experience vision illusions, we had to find a way to ask bees what they saw.
Chicken eyes are stranger than you think: they can look up and down at the same time.
People across the globe all see millions of distinct colors. But the terms we use to describe them vary across cultures. New cognitive science research suggests it's about what we want to communicate.
The artificial vision provided by a bionic eye is not like natural sight, and takes a lot of getting used to.
We're used to thinking of our eyes detecting light as the foundation of our visual system. But what's going on in other cells throughout the body that can detect light, too?
How we see the world depends on certain aspects of our personality.
Why are eyeglasses so expensive? You can thank two massive industry comglomerates, Luxottica and Essilor.
Nocturnal insects have eyes that act like cameras to enhance their light-gathering abilities.
The first truly terrestrial animals evolved from ancient fishes that left the water for land. But what prompted to move has been a mystery.
New research shows pink cricket balls can be extra difficult to see in those crucial minutes when day turns to night during play.
Glaucoma is the sneak thief of sight, affecting the eyesight of more than 50 million people worldwide. It remains the biggest preventable cause of blindness today.
Light arriving from the right visual field is processed in the brain's left hemisphere. So damage to the left part of the primary visual cortex will result in blindness in the right visual field.
More than a million Australians have an untreated cataract and hundreds of cataract surgeries are performed daily, but what are they?
Augmented reality systems need to display relevant information in a useful location. That's impossible without eye tracking.
How does your brain deal with the ambiguous and variable visual information your eyes collect? Neuroscientists think it bets on what's the most likely version of reality.
The navigation tactics of certain Australian ants could point the way to helping driverless cars find their way around.
In Tanzania, where albinism is common, there's plenty that ordinary teachers can do to support students with albinism – much of it quite simple.