People are losing their minds over this circle-filled optical illusion
Yes, there really are circles there.

The coffer iIllusion appears to be nothing but right angles, but there really are circles in there.
Optical illusions are always fun to play with, but some can be particularly challenging on the old eyes and brain. It's fascinating to see how different people process them and how quickly or slowly—or sometimes not at all—people see things that aren't really there or see images hidden within other images.
Not to brag, but I'm kind of an optical illusion savant. It usually doesn't take me longer than a few seconds to see whatever it is people say they are seeing. But occasionally an illusion comes along that stumps me to the point where I wonder if people are actually lying about what they are seeing.
This rectangle/circle illusion is one of those.
It's called the coffer illusion and was created by Stanford University psychologist and vision scientist Anthony Norcia.
It actually won Best Illusion of the Year in 2006.
The image is made up of a pattern of black, white and gray lines of various shades that create the illusion of rectangles. It's easy enough to see the rectangles.
What's not so easy to see are the 16 circles in the image. Yes, they really are there.
Take a look:
Seriously, at first my brain said, "Nope." How could there be circles? All I see are straight lines. Straight lines horizontally. Straight lines vertically. Not a single curved line anywhere in sight. How can there be circles if there are nothing but right angles in the image?
So I did what any self-respecting social-media-savvy person would do and started scrolling the comments to see if anyone explained how they saw circles.
(Warning: Spoilers ahead if you're still trying to see the circles on your own.)
One way to see the circles is to focus on the vertical bars between the rectangles. For some, that makes the circles suddenly pop off the screen.
For those who need more of a visual clue, someone broke it down with colored shapes, literally circling one of the circles.
Once you see them, it's pretty easy to switch back and forth, but hoo boy, does it take a while to actually see them the first time.
Why is that?
According to an explanation from Associate Professor Alex Holcombe and PhD student Kim Ransley from the School of Psychology at the University of Sydney, the reason we have a hard time seeing the circles at first is because of our brain's strong tendency to identify objects in what we're seeing. The lines come together to form edges, contours and shapes, and our brains fill in the objects.
"For most people, the grouping into rectangles initially dominates," the authors write. "This may be because rectangles (including the ones we see in door panels) are often more common than circles in our daily environment, and so the brain favours the grouping that delivers rectangular shapes."
I figure it's also likely due to the rectangles looking more 3D (therefore like a real object) while the circles appear as 2D.
Aren't our brains amazing?
This article originally appeared two years ago.
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A Generation Jones teenager poses in her room.Image via Wikmedia Commons
An office kitchen.via
An angry man eating spaghetti.via 
At least it wasn't Bubbles.
You just know there's a person named Whiskey out there getting a kick out of this. 


An Irish woman went to the doctor for a routine eye exam. She left with bright neon green eyes.
It's not easy seeing green.
Did she get superpowers?
Going to the eye doctor can be a hassle and a pain. It's not just the routine issues and inconveniences that come along when making a doctor appointment, but sometimes the various devices being used to check your eyes' health feel invasive and uncomfortable. But at least at the end of the appointment, most of us don't look like we're turning into The Incredible Hulk. That wasn't the case for one Irish woman.
Photographer Margerita B. Wargola was just going in for a routine eye exam at the hospital but ended up leaving with her eyes a shocking, bright neon green.
At the doctor's office, the nurse practitioner was prepping Wargola for a test with a machine that Wargola had experienced before. Before the test started, Wargola presumed the nurse had dropped some saline into her eyes, as they were feeling dry. After she blinked, everything went yellow.
Wargola and the nurse initially panicked. Neither knew what was going on as Wargola suddenly had yellow vision and radioactive-looking green eyes. After the initial shock, both realized the issue: the nurse forgot to ask Wargola to remove her contact lenses before putting contrast drops in her eyes for the exam. Wargola and the nurse quickly removed the lenses from her eyes and washed them thoroughly with saline. Fortunately, Wargola's eyes were unharmed. Unfortunately, her contacts were permanently stained and she didn't bring a spare pair.
- YouTube youtube.com
Since she has poor vision, Wargola was forced to drive herself home after the eye exam wearing the neon-green contact lenses that make her look like a member of the Green Lantern Corps. She couldn't help but laugh at her predicament and recorded a video explaining it all on social media. Since then, her video has sparked a couple Reddit threads and collected a bunch of comments on Instagram:
“But the REAL question is: do you now have X-Ray vision?”
“You can just say you're a superhero.”
“I would make a few stops on the way home just to freak some people out!”
“I would have lived it up! Grab a coffee, do grocery shopping, walk around a shopping center.”
“This one would pair well with that girl who ate something with turmeric with her invisalign on and walked around Paris smiling at people with seemingly BRIGHT YELLOW TEETH.”
“I would save those for fancy special occasions! WOW!”
“Every time I'd stop I'd turn slowly and stare at the person in the car next to me.”
“Keep them. Tell people what to do. They’ll do your bidding.”
In a follow-up Instagram video, Wargola showed her followers that she was safe at home with normal eyes, showing that the damaged contact lenses were so stained that they turned the saline solution in her contacts case into a bright Gatorade yellow. She wasn't mad at the nurse and, in fact, plans on keeping the lenses to wear on St. Patrick's Day or some other special occasion.
While no harm was done and a good laugh was had, it's still best for doctors, nurses, and patients alike to double-check and ask or tell if contact lenses are being worn before each eye test. If not, there might be more than ultra-green eyes to worry about.