Quiz: The Ultimate Eye Puzzles Quiz: HowStuffWorks
The Ultimate Eye Puzzles Quiz
4 Min Quiz
Image: refer to hsw
About This Quiz
Although eye puzzles, like those created by Magic Eye, were at the peak of their popularity in the 1990s, they still exist today. Test out your knowledge of this primitive 3-D technique with our eye puzzles quiz.
When were eye puzzles first created?
Although 3-D illusions got their start way back in the 1800s, eye puzzles weren't created until 1959 when random-dot stereoimages were invented as part of a depth perception experiment.
True or False: There is only one way to view an eye puzzle.
There are many ways to solve an eye puzzle. Viewing techniques vary. You have to choose the right one for you.
True or False: Everyone can solve eye puzzles.
Viewing eye puzzles involves depth perception, so people with a lazy eye, loss of vision in one eye or depth perception issues may not be able to view them.
True or False: Eye puzzles aren't just for entertainment purposes.
Some doctors use eye puzzles as part of vision therapy, since the process of viewing them relaxes the eye muscles.
Which of the following conditions may hinder your ability to solve an eye puzzle?
All of these conditions may prevent someone from viewing an eye puzzle.
True or False: Crossing your eyes is not recommended when viewing eye puzzles.
Even though your mother warned you against crossing your eyes, it is actually one of the techniques suggested to help solve eye puzzles.
If you are near-sighted and wear glasses, which of the following will help you solve an eye puzzle?
If you are near-sighted and remove your glasses, you will be able to see the eye puzzle more quickly.
Which of the following was the predecessor to eye puzzles?
The stereoscope allowed users to view two flat images, side-by-side, in 3-D form.
True or False: Perfect vision is required for solving eye puzzles.
Some vision issues may prevent you from seeing eye puzzles, but perfect vision is not required.
True or False: Magic Eye Inc. invented eye puzzles.
Autostereograms were invented in 1959 by Dr. Bela Julesz. Magic Eye didn't create their version of eye puzzles until 1991.
Which of the following will help you solve an eye puzzle?
One method involves getting so close to the eye puzzle, your nose touches it. Then you slowly pull back from the image while keeping your eyes un-focused.
True or False: Eye puzzles are bad for your vision.
Eye puzzles are actually used by some doctors as part of vision therapy.
True or False: Relaxing your eye muscles is the key to solving eye puzzles.
Viewing eye puzzles can often be beneficial because to see them, you must relax your eye muscles.
True or False: An eye puzzle consists of viewing two images side-by-side.
Eye puzzles, known as autostereograms, consist of just one image.
What part of your eye produces a 3-D image?
3-D images are not produced in your eye, but in the brain.
Which of the following do you need to solve an eye puzzle?
Healthy vision in both eyes is the only thing you need to solve an eye puzzle.
Analyzing what type of images lead to the creation of eye puzzles?
Dr. Bela Julesz discovered single image stereograms, the predecessor to eye puzzles, while trying to uncover camouflaged objects from aerial spy plane photos.
How many different types of eye puzzles are there?
There are three different types of single image stereograms including random dot, random text and texture.
True or False: If you have lazy eye, you will not be able to solve an eye puzzle.
Those with lazy eye will have extreme difficulty viewing eye puzzles. However, some doctors claim the practice of viewing eye puzzles may improve the condition.
Which method of viewing eye puzzles is the most difficult?
Although it is the most difficult, the parallel viewing method -- staring through the image as if it's not there -- is the recommended technique.
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