The eye Quiz
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5 questions, one answer each
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1. Which part of the eye contains the light-sensitive cells?
- A. Iris
- B. Lens
- C. Retina
- D. Cornea
2. What happens to the pupil in bright light?
- A. It gets larger
- B. It gets smaller
- C. It stays the same
- D. It moves sideways
3. When focusing on a near object, the ciliary muscles
- A. relax and the lens gets thinner
- B. relax and the lens gets thicker
- C. contract and the lens gets thinner
- D. contract and the lens gets thicker
4. Light from distant objects focuses in front of the retina. Which condition and correction is this?
- A. Short sight, concave lens
- B. Long sight, convex lens
- C. Short sight, convex lens
- D. Long sight, concave lens
5. A person has to hold a book far away to read it clearly. What is the most likely cause?
- A. An eyeball that is too long
- B. A lens that is too strong
- C. A lens that is too weak or an eyeball that is too short
- D. A damaged optic nerve