vision

Do Colour Blind People See More Colours When They Take Hallucinogens?

If you gave a colour blind person something like LSD or some other sort of hallucinogenic drug, would they see colours they couldn’t before? Interestingly, there is a great deal of crossover in how people affected by protanopia (red light dichromacy) and deuteranopia (green light dichromacy) see the world, as such “red/green colour blindness” is often used as a catchall term. As a side note, this is also by far the most common kind of CVD.


DJI Phantom 2 Vision+ Drone Review: Buttery Smooth Quadcopter Video

DJI has been making remote-control quadcopters for years. Originally, you had to strap your GoPro to it, but last year DJI introduced the Phantom 2 Vision, which had its own integrated camera system. It was pretty sweet, but every tiny turn you took your video shook enough to scramble your viewer’s brain.


This Is What It's Like To See The World As A Fly

Ever wondered how weird-eyed animals like flies and chameleons see the world? Now you can take a look for yourself.


Looking At Orange Light Is Like Drinking A Cup Of Coffee

Light is an incredibly powerful force. Sure, it helps us see and gives us fast internet, but medical researchers keep stumbling upon new positive side effects. A team of Belgian scientists, for instance, just discovered how a 10-minute blast of orange light increases brain activity related to cognition and alertness.


This Simple App Can Train Your Brain To Have 20/7.5 Vision

Everybody wishes they had super powers. The big problem with that shared ambition, however, is that super powers do not exist. Not unless you count super human vision. That does exist, and a new app promises to help you attain it.


Scientists Use Gene Therapy To Stop Six People Going Blind

A team of surgeons in Oxford have used a pioneering new form of gene therapy to stop six of their patients going blind–and it’s hoped the technique could be used to treat blindness more generally.


How The 20/20 Vision Scale Works

With more than 150 million people in the United States (nearly half of the population) requiring some form of corrective eyewear to compensate for visual impairment, chances are you have had your eyesight graded on the 20/20 scale before. If you haven’t, you have probably heard other people saying they have “20/20 vision” or even the phrase “hindsight is 20/20″. The vision scale is so prevalent in Western culture that there’s even a TV news show named after it.


This Is What It's Like To See The World As An Animal

If you’ve ever wondered how animals view the world, this video should satisfy your curiosity. It shows how five different animals — cats, dogs, rats, hawks and bees — see the world.


If The Colour Pink Doesn't Scientifically Exist, Why Can We See It?

Absent from the visible spectrum and neither a wave nor a particle, the colour pink is, for many, a scientific enigma: how can a shade that doesn’t even appear in the rainbow exist? The answer lies in colour theory.


Why Your Dumb Eyeballs Keep Falling For Optical Illusions

Optical illusions are fun because you literally can’t believe your eyes. But isn’t it a little troubling that your eyes can get fooled like that? Why don’t they show you the visual truth? How can you ever trust them if they don’t?