light notes 3 the eye. parts of the eye cornea iris- controls the amount of light that enters the...

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Light Notes 3 THE EYE

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Page 1: Light Notes 3 THE EYE. Parts of the Eye Cornea Iris- Controls the amount of light that enters the eye Pupil- Lens- Retina- Optic Nerve- clear, protective

Light Notes 3

THE EYE

Page 2: Light Notes 3 THE EYE. Parts of the Eye Cornea Iris- Controls the amount of light that enters the eye Pupil- Lens- Retina- Optic Nerve- clear, protective

Parts of the Eye

Page 3: Light Notes 3 THE EYE. Parts of the Eye Cornea Iris- Controls the amount of light that enters the eye Pupil- Lens- Retina- Optic Nerve- clear, protective

Parts of the Eye• Cornea

• Iris- Controls the amount of light that enters the eye

• Pupil-

• Lens-

• Retina-

• Optic Nerve-

clear, protective layer of your eye

black middle part of the eye, it is actually a hole covered by the clear cornea. It looks black because it is an opening into the dark inside of the eye.

a convex lens that refracts light to the back of the lining of your eyeball

cells on the eyeball lining that picks up the image and sends out nerve signals

nerve that signals travel from your eye to your brain on the optic nerve.

Page 4: Light Notes 3 THE EYE. Parts of the Eye Cornea Iris- Controls the amount of light that enters the eye Pupil- Lens- Retina- Optic Nerve- clear, protective

Nearsightedness

• __________________________________

eyeball is too long

can see things that are near but not far

Page 5: Light Notes 3 THE EYE. Parts of the Eye Cornea Iris- Controls the amount of light that enters the eye Pupil- Lens- Retina- Optic Nerve- clear, protective

Farsightedness

• __________________________________

eyeball is too short

can see things that are far but not near