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About the Eye...?

1. Is the changing of the lens from thick to thin involuntary or voluntary movement?

2.Are the lens of an eye rigid like a glass lense?

3.Does the optic nerve enter the eyeball directly behind the lens? Why or why not?

2 Answers

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  • 1 decade ago
    Favorite Answer

    1. involuntary movement

    2. no

    3. no. ( it not enters the eyeball. it just receive impulses from retina and send the impulses to the brain to be interperated)

  • Anonymous
    1 decade ago

    the other guy got the first two so ill just tell you that the optic nerve doesnt do that because then you cant see, itd block the rods and cones of the retina from receiving light.

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