Artículos sobre Vision

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Glaucoma is an insidious disease that is sometimes confused with inattention or vision deteriorating with age, yet it can kill your eyesight and leave you blind. Shutterstock

Glaucoma: Vision’s silent killer

Glaucoma is a serious disease which, if left untreated, can cause blindness. A professor of optometry explains the risks, process of diagnosis and available treatments.
You’re another year older but that doesn’t have to mean poorer health. Lorene Farrugia

Diseases through the decades – here’s what to look out for in your 40s, 60s, 80s and beyond

As you age, your body deteriorates and your risk of disease and injury increases. Here's a decade by decade guide to what you're up against – and what you can do about it.
Watch out for these tiny tough guys. Roy L. Caldwell, Department of Integrative Biology, UC Berkeley (For use only with this article)

A cooler ocean predator than sharks? Consider the mantis shrimps

With superpowers other animals can only dream of, these crustaceans challenge sharks for the title of most amazing predator in the sea.
Everyone sees them all, but we don’t all give them the same distinct names. lazyllama/Shutterstock.com

Languages don’t all have the same number of terms for colors – scientists have a new theory why

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.
375 million years ago fishes like Tiktaalik (pictured, above) looked out above water for prey. John Long, Flinders University

The eyes have it: how vision may have driven fishes onto land

The first truly terrestrial animals evolved from ancient fishes that left the water for land. But what prompted to move has been a mystery.

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