Eye Safety and Protection
Wear these to prevent chemicals and particles from getting in your eyes during science labs and construction projects.
safety goggles
The color of your eyes comes from this natural pigment.
melanin
The common eye problem that causes blurry vision when looking at things up close.
hyperopia
These sit above your eyes and help keep sweat out of them.
eyebrows
The clear, curved structure at the front of the eye that helps focus light.
cornea
The best thing to wear on a sunny day to protect your eyes.
sunglasses
The color most people in the world have for their eyes.
brown
The condition where light focuses in front of the retina, making distant objects blurry.
myopia
The clear, protective layer of the eye that can be scratched if not careful.
cornea
The colored part of the eye that is a muscle that controls how much light enters.
iris
The liquid that keeps your eyes moist and washes away dirt.
tears
The fastest-reacting muscle in the body.
eye muscle
A disease that damages the optic nerve and can lead to blindness.
glaucoma
The type of energy that allows us to see.
light energy
The black circular opening in the center of the eye that light enters the eye through.
pupil
The reason you should not look directly at the sun.
It can burn your retinas.
The reason we have two eyes instead of one.
depth perception
A cloudy area in the lens that makes vision blurry.
cataracts
The two types of cells in the retina that detect light and color.
rods and cones
The layer of the eye that contains rods and cones and helps detect light.
retina
The best way to avoid eye strain when using screens for a long time.
20-20-20 rule
You blink about this many times in one minute.
15-20 times
The eye condition caused by overlapping cones.
color blindness
The part of the eye that changes shape to focus light on the retina.
lens
The nerve that carries signals from the eye to the brain.
optic nerve