This process is called accommodation--the lens focuses images to help make vision clear.
It's called a stereogram. It's an Optical illusion (trick on the brain and eyes).
The eyes can get dry and the lens my get tired an weak over ling periods of activity
Roll On Floor Laughing Out Loud My ___ Off Can't Operate Properly Till Eyes Refocus
What you have is a Telescope Goldfish. the eyes protrude as a product of the cross breeding process
What is the writing process called?
our eyes blink because the rays of the sun hits our eyes directly which causes them to close and when we open our eyes again the same process is done...
A bright light that causes you to shut your eyes is called a glare. A glare is harmful in that light enters your eye, but doesn't help you see.
I think when you rub your eyes you create pressure in your eyes so the only way for your brain to process light would be to make light. this is called pressure phosphenus.
Dark-adaptation.
Yes they do ! There was a documentary on TV recently called "How do they do it" which showed the process.
blinking
A tumor or aneurysm in the cavernous sinus, located behind the eyes, can cause painful ophthalmoplegia. Painful ophthalmoplegia can also be caused by an inflammatory process in the same area, called Tolosa-Hunt syndrome