vision

The Real Science Behind The Crazy Night Vision Eyedrops  

When I called up the Columbia scientist whose mouse experiments inspired two biohackers to squirt chemicals in their eyes to induce “night vision”, I expected, at best, cautious optimism. I did not expect him to tell me that, oh yeah, once, in his younger days, he hooked himself up to an IV and tried it, too.


Simple GIF Vision Test Shows How Good Your Eyesight Is

Do you see Albert Einstein or Marilyn Monroe? If you see Einstein, that means your vision is good! If you see Marilyn Monroe, your eyes need some help. In the GIF above, you should see both as it zooms in. When the image is further away and smaller, you’ll see Marilyn. As it comes closer, you’ll see Einstein. The quicker you see him, the better your eyesight.


This Contact Lens Can Zoom In With A Wink Of The Eye 

This little cone of plastic that fits on your eyeball is actually an extremely thin telescope that can be turned on and off with a simple wink of the eye.


These Helmets Let You See The World As An Animal

These sleek, polished metal helmets may look good from the outside — but from the inside, they reveal the world in a whole different way. You see, they allow you to take in your surroundings as if you were an animal.


Humans Have Been Able To Perceive Infrared Light This Whole Time 

The human eye is a more complex and mysterious thing than we thought. Recently, a group of scientists were puzzled by flashes of green light they saw from an infrared laser, whose light should have been far outside the visible spectrum. Like scientists do, they investigated. Human eyes do indeed perceive infrared light, they found, but not they same way they perceive ordinary colours. It’s weirder than that.


Contact Lenses Used To Be Made Out Of Glass

Did you know that before the age of plastic, contact lenses were made of glass? It’s true! And slightly horrifying!


Why Are Stars Star-Shaped?

Our sun is spherical, so why is it that other stars look… star-shaped in the night sky? Actually, it’s all down to the quirks of light and your (imperfect) eyes.


The Man Who Grew Eyes From Scratch

Growing nerve tissue and organs is a sci-fi dream. Moheb Costandi met the pioneering researcher who grew eyes and brain cells.


Why Deer Freeze In Your Headlights

Less a function of fear than bewilderment; simply put, deer freeze in headlights because they can’t see.


How Many Different Colours Can We See?

We all know that some people see the world in a limited palette of hues due to colourblindness. But what’s the largest number of colours that we can possibly see?