Sleep
How many hours of sleep should you get per night?
8-10
The wall of an eyeball has ______ layers.
3
Clear front outside part of the eye.
Cornea
To see, the eye has to able to move, it has ______ extraocular muscles that surround the eyeball and act like the strings on a puppet.
6
What is astigmatism?
Curve issue on the cornea
List 4 reasons why people have trouble sleeping.
Busy, homework, sports, job, social media, friends
Name the three layers from outside to inside in the correct order/
Sclera, choroid, retina
Small black circle that can change sides to allow light in.
Pupil
The space in the center of the eyeball is filled with a clear jelly-like material called the ______________.
Vitreous humor
Scientific word for nearsighted and farsighted
Myopia and Hyperopia
People with ___________ are very sleepy during the day. They may feel drowsy or fall asleep suddenly without warning. They can lose control of their muscles, or have vivid dreams while dozing off or waking up.
Narcolepsy
What is the choroids main job?
Colored part of the eye that can change sizes to let light in.
Iris
____________ is the process by which images captured by the eye are interpreted by the brain, and the visible part of the eye is where the process of sight begins
Vision
____________ is an eye disorder associated with aging and results in damaging sharp and central vision.
Macular Degeneration
What does REM stand for and why is it important to reach REM during sleep?
Rapid Eye Movement and dreaming/deep sleep/recovery phase
What does the retina do?
Explain how the pupil changes sizes depending on how much light is present.
Pupil bigger when dark and smaller when bright
There are 120 million of these in each eye and they see black/white only.
rods
______________ is a clouding of the eye’s lens and is the leading cause of blindness worldwide, and the leading cause of vision loss in the United States.
Cataracts
How long does each sleep cycle last?
90 minutes
What is the sclera's main function?
Protection for the eye
What clear colored part of the eye sits directly behind the iris?
Lens
There are 8 million per eye and process color.
Cones
__________ is a group of eye diseases that can cause vision loss and blindness by damaging a nerve in the back of your eye called the optic nerve.
Glaucoma