Breathing bushfire smoke can be particularly dangerous for people with pre-existing conditions.
Erik Anderson/AAP
Millions of Australians far from the bushfires’ direct path have been affected by smoke haze. Here’s everything we know about the effects of bushfire smoke on our health.
Looking out the window instead might stop you feeling sick, but that doesn’t work for everyone.
Vadiar/Shutterstock
When you read in the back seat of the car, your eyes tell your brain you’re still. But your ears can sense you’re moving. Your eyes and ears are having an argument that your brain is trying to settle.
Part of the cause of short-sightedness is also in our genes.
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Too much studying and staying indoors are more likely to blame for the rise in the number of children with myopia, or short-sightedness.
Optical illusions use colour, pictures and shapes that can make our brain and eyes confused.
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Sometimes our brain gets confused and misunderstands what the eyes tell it.
Give yourself time and you can see in the dark.
Anton Watman/Shutterstock.com
Just the tiniest bit of light can let you see in the ‘dark.’ Here’s how your eyes do it.
I spy with my little eye…
Shutterstock.
Pets, like guinea pigs, lead very different lives to humans – and that’s why they need very different eyes, too.
Known sweat-collecting stingless bees, Tetragonula sp., from the bee family Apidae.
Tobias Smith
Bees might not be able to survive inside a person’s eye, but they can be drawn to disgusting food sources.
Stay vigilant.
El Nariz/Shutterstock
If you’re in a competitive environment, be wary of people looking you directly in the eyes.
Today’s young people don’t play outside as much as their predecessors and are heavy users of electronics.
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Myopia is a major risk factor for serious eye diseases. It has become epidemic among children, particularly because of their heavy use of electronic devices.
Photo by Daoudi Aissa on Unsplash
Simply closing your eyes will protect your eyes from sunlight. But looking straight at it can cause serious damage.
The amount of light your eyes can process might be one of the reasons why some people are more likely to experience SAD.
Hanna Kuprevich/ Shutterstock
One study found that people with brown eyes were more susceptible to the disorder.
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Our eyes don’t grow much at all – but when we’re very young, we still need to learn how to see.
Colour blind people are really good at spotting things that are far away, and they are better than most people at telling things apart by their shape.
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Some colour blind people only have two kinds of cone cell in their eye. Others have three kinds, but the cones do not pick up the same light waves as the cone cells in most people’s eyes do.
We don’t all see the same.
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What colours we see depends not just on how things are in the world around us, but also on what happens in our eyes and our brains.
Examination by ophthalmoscope in JF Phillips’ Ophthalmic Surgery and Treatment, 1869.
Wellcome Library
Screen time wasn’t a issue in the 19th century but that didn’t stop concerns over how new developments might damage eyesight
‘Seeing’ through robot eyes.
Shutterstock/TrifonenkoIvan
For roboticists looking to nature for inspiration on how animals see the world, there’s a tension between mimicking biology and capitalising on the advances in camera technology.
The skin under our eyes is thinner than elsewhere on our face, meaning our blood vessels are more visible.
from www.shutterstock.com
Many people have an appearance of dark circles on the lower eyelids, and they have many different causes.
How much an ant can see depends on its size.
Flickr/photochem PA
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?
Glasses help people to see by focusing light onto the retina.
Marcella Cheng/The Conversation
Many people, from children to the elderly, wear glasses. Andy, age 5, wants to know how they work.
Scientists aren’t sure exactly why we cry when we are sad.
Thomas Stromberg/Flickr
Whether we’re happy or sad, it doesn’t take much to turn on the waterworks. But how and why do humans cry?