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Articles on Vision

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Electronic devices are not, in and of themselves, a source of visual problems. Using these devices inappropriately can interfere with the natural development of the eye, as well as reading and learning skills. Shutterstock

Development of vision in early childhood: No screens before age two

The impact of using electronic devices is critical during the first years of life, both visually and on the cognitive and social development of the child.
The same thing that makes their eyes glow helps cats see better in dim light. Cletus Waldman/EyeEm via Getty Images

Why do cats’ eyes glow in the dark?

A veterinary ophthalmologist explains what’s going on.
Fossils of Shuvuuia deserti depict a small predatory creature with exceptional night vision and hearing. Mick Ellison/American Natural History Museum

Nocturnal dinosaurs: Night vision and superb hearing in a small theropod suggest it was a moonlight predator

By looking at the eye bones and ear canals of extinct dinosaurs, researchers show that a small ancient predator likely hunted at night and had senses as good as a modern barn owl.
Children’s increased screen time, exacerbated by remote learning during COVID-19, is directly contributing to increases in childhood myopia. (iStock)

Hidden in plain sight: How the COVID-19 pandemic is damaging children’s vision

The COVID-19 pandemic has resulted in children spending more time on digital devices, which may have a long-term impact on their vision, including the risk of myopia.
It’s disconcerting to think the way two people perceive the world might be totally different. Mads Perch/Stone via Getty Images

Do you see red like I see red?

Neuroscientists tackling the age-old question of whether perceptions of color hold from one person to the next are coming up with some interesting answers.
Whether in the wild or in the lab, worms have an interesting story to tell. Sinhyu/iStock via Getty Images

Why do scientists care about worms?

‘Worm’ is really a catchall term for a huge variety of animals with different characteristics that span the tree of life. They hold clues about our own origins as well as hints about human health.
A tiger’s vertical stripes help it blend in with trees and grasses in its homelands in Asia. Frédéric Soltan/Corbis via Getty Images

Why do tigers have stripes?

How do tigers – a top predator – successfully hunt their prey when they have bright orange fur? The secret’s in their stripes!

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