optical illusion.
How Optical Illusions Work
They say “seeing is believing.” It is true that we tend to believe what our eyes tell us, but in the case of optical illusions, what our eyes tell us is not always the truth...
Woman sleeping.
What Do Your Eyes Do As You Sleep?
We spend an average of 2,920 hours a year sleeping, which accounts for about a third of our lives. It looks like we’re doing nothing–just lying still and being unresponsive–but...
a woman with an ocular migraine.
The Difference Between Migraines with Aura and Ocular Migraines
There’s nothing like it–the excruciating, throbbing pain in your head that can only be a migraine. If you suffer from migraines, you may have noticed some visual disturbances in...
two people looking out to a city view
How Eyes See at Night
If you know how our eyes work, you know they need light to see. So how do we see so well in almost complete darkness? Our eyes let us see an incredibly wide range of lighting...
sand getting in a girl's eye.
What Happens When Sand Gets in Your Eyes
One minute, you’re enjoying a leisurely day at the beach, then suddenly a gust of wind picks up and your eyes start hurting and watering uncontrollably. You’ve gotten sand in your...
Woman struggling to see screen.
Three Ways to Slow Down Myopia
Myopia, which is also known as short-sightedness or nearsightedness, is a growing problem. In fact, a recent study predicts that myopia will affect vision for nearly half of the...