The dark hole in the middle of the iris that controls the amount of light reaching the back of the eye.
Pupil
What you wear on a sunny day to protect your eyes.
Sunglasses
Humans do this about 15-20 times per minute and up to 1,200 times per day!
Blink
It focuses light to the back of the eye by changing shape.
Lens
The decreased ability to see color or differences in color.
Color Blindness
What you wear when playing sports, doing construction, or home repairs to protect your eyes.
Safety Glasses/Safety Goggles
This household pet is nearsighted, meaning it can see things near them but not far away.
Cat
The clear outer layer of the front of the eye.
Cornea
Images of distant objects are blurred due to the eyeball being too long.
Myopia (Nearsightedness)
Eye Exams
This household pet cannot tell red and green apart.
Dog
The types of photoreceptors that change light into energy to be transmitted to the brain.
Rods & Cones
A vision disorder that can lead to fatigue or crossed eyes.
Hyperopia (Farsightedness)
A primary health care provider for the eye.
Optometrist
This vision disorder is more common in males than in females.
Color Blindness
This type of photoreceptor perceives color.
Cone (Cells)
The surface of the cornea or lens is a weird shape, causing fuzzy vision.
Taking a break every 20 minutes to look at something 20 feet away for 20 seconds.
20-20-20 Rule
This animal can be found in the desert and has three eyelids! This is to protect its eyes from sand blowing in the desert.
Camel