Color-changing cells in an Atlantic squid’s skin contain light-sensitive pigments.
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?
Accurate diagnosis of glaucoma requires trained specialists and advanced equipment.
Glaucoma is a slow and silent progressive disease and the second leading cause of blindness, that requires early diagnosis.
375 million years ago fishes like
Tiktaalik (pictured, above) looked out above water for prey.
John Long, Flinders University
The first truly terrestrial animals evolved from ancient fishes that left the water for land. But what prompted to move has been a mystery.
The fossilised skull of an Odontocyclops displays its pineal foramen.
Nkansahrexford (Own work) via Wikimedia Commons
Mammals' ancestors had a third eye and the fossil record of its disappearance tells us the story of the evolution of one of our most important features: warm blood.
It’s easy to tell the direction of the human gaze.
Laurinemily at English Wikipedia
Is someone looking at you or are you just imagining things? A neuroscientist explains.
What makes your brain go all-in on what it thinks you’re seeing?
Chips image via www.shutterstock.com.
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.
Mind those eyes.
Lasers are getting smaller, cheaper and better. It's time we were far more careful with them.
You see with your brain, not just your eyes.
Sure, your eyes are crucial for seeing the world around you. But it's your brain that does the really hard vision work.
Bright light outdoors stimulates the release of the retinal transmitter, dopamine, which has a protective effect.
Myopia, or short-sightedness, is a condition in which distant objects appear blurred, but closer objects can usually be seen in sharp focus.
We already use ‘polarised’ technology.
Here's how you can learn to see the normally hidden effects of polarised light that some animals use for navigation.
From brain health to to diabetes – you can tell a lot from the eye.
The retina captures light signals and sends them to the brain.
The reverse-wiring of the eyeball has long been a mystery, but new research shows a remarkable structural purpose: increasing and sharpening our colour vision.
Here’s looking at you kid.
Glasses by Shutterstock
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…
I see how you see.
Eyes and wings are among the most stunning innovations evolution has created. Remarkably these features have evolved multiple times in different lineages of animals. For instance, the avian ancestors of…
A new layer of the cornea in the eye has been discovered by scientists in the United Kingdom. The cornea is the protective…