After the cells developed into mini-brains, the optic cups formed 30 days later and fully matured at 50 days.

Innovation for Good

Mini Brains Grown From Stem Cells Developed Light-Sensitive, Eye-Like Features

Understanding how eyes develop can help researchers pinpoint how to treat early retinal diseases

The researchers taught 26 volunteers to use mouth clicking to observe nearby objects and navigate outdoors.

New Research

People Can Learn Echolocation in Ten Weeks

Researchers taught 12 people who are blind and 14 people with sight to use clicks to navigate their environments

In a lab experiment, a blind 58-year-old male volunteer was able to identify the position of two cups after receiving a new type of gene therapy.

New Research

New Gene Therapy Partially Restores Sight to Blind Man

Researchers inserted genes that code for light-sensitive proteins in algae into the man’s retina, and now he reports limited but much improved vision

The tear gland organoids grown from stem cells produce a tear-like fluid (red).

New Research

Scientists Make Tiny Lab-Grown Tear Glands Cry

The tear-producing organoids researchers created could one day help relieve medical conditions that cause dry eyes

A male Broad-tailed Hummingbird photographed at the Rocky Mountain Biological Laboratory in Gothic, Colorado, where researchers conducted field experiments on avian color vision.

New Research

Compared With Hummingbirds, People Are Rather Colorblind

Experiments reveal the tiny birds can see "non-spectral" colors that blend ultraviolet light with colors humans can see to create distinct hues we can't

Cuttlefish are calculating hunters, and need depth perception to efficiently snare their prey.

Scientists Velcroed 3-D Glasses to Cuttlefish to Study Their Depth Perception

The results of the eye-popping study suggest cuttlefish see the world in surprisingly human ways

It’s very early days—so don’t ditch your glasses just yet.

These Lenses Zoom With a Couple Blinks of Your Eyes

Researchers have developed a soft polymer lens that changes shape based on electrical input

Photography was so expensive when it was first introduced that people treated getting their photo taken like a once-in-a-lifetime portrait opportunity.

Why Don't People Smile in Old Photographs? And More Questions From Our Readers

You asked, we answered

Lithoredo abatanica, the rock-eating shipworm.

Cool Finds

These Two Newly Described Worms Have Really Strange, Yet Marvelous Butts

One worm species has eyes on its behind and another eats rock then poops sand

I can haz Snausage?

New Research

Dogs Evolved a Special Muscle That Lets Them Make 'Puppy Dog Eyes'

Wolves don't have the muscle to make that classic wide-eyed gaze, suggesting strong evolutionary pressures were at play in our pooches

The lines scribbled over this famous Georges Seurat painting come from an experiment that tracked how the human eye jerks around as it takes in the details of the scene.

Our Eyes Are Always Darting Around, So How Come Our Vision Isn't Blurry?

Our brains manage to construct stable images even as our eyes keep jerking around. Here’s what we know about how that happens.

Scallops can have up to 200 eyes, although scientists still don't know exactly how they all work together to help the mollusks see.

What Scallops' Many Eyes Can Teach Us About the Evolution of Vision

Scallop eyes, which function similar to telescopes, are even more complex than scientists previously knew

A rare, blue-eyed coyote

Rare Blue-Eyed Coyotes Spotted in California

Coyotes’ eyes are consistently golden-brown, so researchers have been surprised to learn of five California coyotes with piercing baby blues

The Boarding Glasses have two round lenses in front and two on the side, the hollow rims each half filled with blue liquid.

Could These Glasses Cure Your Motion Sickness?

These odd-looking spectacles are the latest invention to try to resolve the common ailment

The team’s findings compared the estimated visual acuity, or sharpness, of about 600 species.

How Does Your Vision Compare to Other Critters in the Animal Kingdom?

A new review of visual acuity compares the sight of 600 species, from mosquitoes to eagles

Eye worm extracted from Beckley

New Research

Woman Pulls Parasitic Cattle Eye Worm From Her Own Eye

This was the first-known time the parasite has made the jump from cows to humans

New Research

Praying Mantises Don Tiny Goggles to Help Us Understand 3-D Vision

Unlike humans and other animals, the insects rely on movement to judge distances to their prey

Could This Bionic Vision System Help Restore Sight?

The technology gives hope that blind patients, who lost sight from disease, might one day emerge from the dark

A record-breaking gathering of Waldo (known across the pond as 'Wally') impersonators in Dublin, Ireland, in 2011.

The Science Behind Our Search for Waldo

'Where's Waldo' was first published on this day in 1987

Everyone sees them all, but we don’t all give them the same distinct names.

The World Has Millions of Colors. Why Do We Only Name a Few?

Cognitive scientists suggest that we name the colors of things we want to talk about

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