How The Eye Works

8 Questions | Total Attempts: 187

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Eye Quizzes & Trivia

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Questions and Answers
  • 1. 
    There are many parts to the eye, all of which have their different functions.-The lens finely focuses the light-The pupil controls how much light is let into the eye-The retina contains the rods and cones-The rods let you see black and white-The cones let you see colour-The vitreous humour is a jelly-like substance that holds the shape of the eye-The iris controls the size of the pupil-The optic nerve joins the eye to the brain, and transmits the electrical signals-The blind spot is the spot where there are no rods or cones, as it is where the optic nerve connects to the eye-The cornea is a thin layer of protective cells that also roughly focus the light-The ciliary muscles control the shape of the lens
  • 2. 
    The iris...
    • A. 

      Detects colours.

    • B. 

      Controls the size of the pupil.

    • C. 

      Controls the shape of the lens.

    • D. 

      Finely focuses the image.

  • 3. 
    What does the cornea do?
    • A. 

      Protects the eye with transparent cells, and also roughly focuses the light.

    • B. 

      Roughly focuses the light.

    • C. 

      Jumbles up the light rays to be reassembled in the iris, and protects the eye with transparent cells.

    • D. 

      Protects the eye with transparent cells.

  • 4. 
    The pupil...
    • A. 

      Controls how far away you can see in focus.

    • B. 

      Abosrbs light.

    • C. 

      Lets you see black (and white).

    • D. 

      Controls the amount of light entering the eye.

  • 5. 
    What do rods do?
    • A. 

      Make black and white vision possible.

    • B. 

      Make colour vision possible.

    • C. 

      Make the image flip around.

  • 6. 
    Cones let you see in colour.
    • A. 

      True

    • B. 

      False

  • 7. 
    The optic nerve sends the electrical signals to the brain.
    • A. 

      False

    • B. 

      True

  • 8. 
    The ciliary muscles control...
    • A. 

      The amount of light going into the eye

    • B. 

      The rods

    • C. 

      The lens shape

    • D. 

      The cones