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.
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?
United States Geological Survey
Nocturnal insects have eyes that act like cameras to enhance their light-gathering abilities.
Dusk during the second day of the day-night Sheffield Shield match between Queensland and New South Wales at the Gabba, Brisbane, in October 2016.
AAP Image/Dave Hunt
New research shows pink cricket balls can be extra difficult to see in those crucial minutes when day turns to night during play.
We don’t tend to realise it, but there are complex processes happening in our body at all times just to keep us upright.
The fact we are almost totally unaware of this elegant reflex is evidence of the superb, undercover work the balance system does for us.
The way someone with glaucoma sees.
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.
Bowie: the eyes of an icon.
As news of the star's death is announced, the truth about his captivating look ...
Glaucoma is a leading cause of blindness.
AAP Image/Alan Porritt
Scientists have discovered that the high pressure in the eye that occurs with most common forms of glaucoma can trigger two genes that work together to cause vision loss, which may help pave the way for new glaucoma drugs.
Me, myself and eye.
The middle part of our vision sees in a much higher resolution than at the peripheries. But that's just the beginning ...
Spot the fox, wolf, sheep and…cuttlefish.
Jim Champion (sheep); R'lyeh (wolf); Michele Lamberti (fox); William Warby (cuttlefish)
Study shows how eyes that work for hunters are no use for the hunted.
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.
Acanthamoeba castellanii is a very painful parasite to encounter.
Vision loss causes 11% of the health gap between Indigenous and non-Indigenous Australians.
The tragedy of vision loss and blindness in Indigenous communities is striking: Aboriginal and Torres Strait Islander adults have six times more blindness than non-Indigenous adults and nearly three times…
World Cup footballers will now be turning their thoughts towards those last tweaks of preparation. Most of the work will have gone in over the past weeks and months to get players into the best possible…
Did you ever see such a sight in your life?
Cindy Cornett Seigle/Flickr
Scientists have developed a new chemical they claim can restore light sensitivity in blind mice. The compound, called DENAQ…
Melanopsin pigment in the eye could be more light sensitive than the pigment that allows for night vision, rhodopsin. A two-year…
Flash photography has no significant effect on the behaviour, movement or site persistence of the White’s seahorse. This…
A group of cells within the brain that helps humans avoid accidents have been identified. The cells detect edges and help…
Your brain might be sending you mixed messages about who’s really staring at you. A new study has found that the human brain…