Did you see that sunset last night? How about the big game? Or were you watching your child take their first steps? Our eyes truly let us see some wonderful things.
But how do eyes work?The eyes are fascinating and complex organs with many components.We’d like to help you understand exactly how eyes function so you can appreciate just how amazing these organs that allow us to see the world really are!
How Do We See?
For our eyes to work, there needs to be light. Light from the sun or an artificial source bounces off objects andinto our eyes through the pupil—the black hole in the middle of our eyes. The iris, the colored part of the eye, changes the size of the pupildepending on how much light there is.
After entering the eye through the pupil,light passes through the lens. The lens focuses the light onto the retina at the back of the eye. Theretina contains millions of photoreceptors–sensors that convert light into electrical impulses. These electric impulses travel along the optic nerve and into our brain.The brain then produces an image, allowing us to see!
5 More Cool Eye Facts
Here are some interesting facts about how our eyes work:
Thepupil dilates 45 percentwhen looking at something pleasant, trying to take it all in.
The retina can transmit up to10 million bits of information every second!
Youreyes use 65 percent of your brainpower–that’s more than any other part of your body.
Images that are sent to your brain are actuallybackwards and upside down.
Humans cansee the light of a candle from 14 miles awayunder the right conditions!
We Love Your Eyes!
Our eyes are windows to the world around us. They let us see so many magnificent things! Make sure you take care of those beautiful eyes of yours bymaintaining a healthy lifestyle and making regular visits to your eye doctor.
Call our office today at 717-597-7708 to schedule your comprehensive eye exam. We are always accepting new patients.