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2. pupil

  • Lets the light into the eye
  • Controls what eye does
  • Focuses on light
  • Protects the eye

3. What do eyes in light do

  • The radinal muscles contract the iris
  • pupils need to get small so radinal cells do not over excited. Circular muscles contract to make iris thicker
  • Pupils need to get bigger

4. Retina

  • Sends messages
  • Light sensitive rods and cones. Sends messages to optic nerve to send them ti brain
  • Rods and cones
  • Sensitive

5. Iris

  • Lubricates the eye
  • Lets light into eye
  • Controls diameter of pupil
  • Focuses on light
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