How Eyes Work
what part of the eye controls how much light enters?
pupil
what should you wear outside to protect your eyes?
sunglasses
should you sit close or far from a screen?
farther away, at least arm's length
what do you wear if you can't see clearly?
glasses or contact lenses
what part of the eye sends messages to the brain?
optic nerve
name one vegetable that is good for your eyesight
carrots, spinach
what can happen if you look at screens too long without breaks?
eye strain, headaches, dry eyes
what is it called when you can't see things far away?
nearsightedness/ myopia
what is the clear outer part of the eye called?
cornea
what is the 20-20-20 rule?
every 20 minutes, look 20 feet away for 20 seconds
how does blue light from screens affect sleep?
it makes it harder to sleep by reducing melatonin
what should you do if you have blurry vision?
tell your parent or teacher and see an eye doctor