GCSE Physics – Structure of the eye
Learning Objectives
-I can describe the functions of the retina, lens, cornea, pupil, ciliary muscle and suspensory ligaments in the eye
-I can describe the correction of vision defects by lenses
-I can describe and recall the uses of lasers
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Question 1 of 38
1. Question
What does the eye have?
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Question 2 of 38
2. Question
Where is the cornea?
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Question 3 of 38
3. Question
What does the cornea do?
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Question 4 of 38
4. Question
Where is the pupil in the eye?
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Question 5 of 38
5. Question
What does the pupil do?
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Question 6 of 38
6. Question
Where is the lens in the eye?
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Question 7 of 38
7. Question
What does the lens do?
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Question 8 of 38
8. Question
Where is the retina in the eye?
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Question 9 of 38
9. Question
What does the retina do?
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Question 10 of 38
10. Question
Where are the ciliary muscles + suspensory ligaments?
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Question 11 of 38
11. Question
What do the ciliary muscles + suspensory ligaments do?
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Question 12 of 38
12. Question
What are the two types of light receptors?
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Question 13 of 38
13. Question
Where are light receptors found?
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Question 14 of 38
14. Question
How does the eye adapt to light levels?
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Question 15 of 38
15. Question
What happens to radial and circular muscles in dim light?
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Question 16 of 38
16. Question
What does this cause the pupil to do in dim light?
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Question 17 of 38
17. Question
Why is the pupil dilated in dim light?
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Question 18 of 38
18. Question
What happens to radial and circular muscles in bright light?
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Question 19 of 38
19. Question
What does this cause the pupil to do in bright light?
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Question 20 of 38
20. Question
Why is the pupil contracted in bright light?
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Question 21 of 38
21. Question
What is changing the shape of lens to focus on near or distant objects?
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Question 22 of 38
22. Question
What parts of the eye are involved in accommodation?
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Question 23 of 38
23. Question
What ligaments are involved in accommodation?
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Question 24 of 38
24. Question
What happens to focus on a near object?
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Question 25 of 38
25. Question
What happens to the lens when focussing on a near object?
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Question 26 of 38
26. Question
What does the thicker lens do to light rays?
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Question 27 of 38
27. Question
What happens to focus on a distant object?
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Question 28 of 38
28. Question
What happens to the lens when focussing on a distant object?
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Question 29 of 38
29. Question
What does the thinner lens do to light rays?
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Question 30 of 38
30. Question
Why do we need accommodation?
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Question 31 of 38
31. Question
What is the official name for short sightedness?
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Question 32 of 38
32. Question
What is the official name for long sightedness?
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Question 33 of 38
33. Question
Why do these conditions cause poor sight?
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Question 34 of 38
34. Question
How are these conditions most commonly treated?
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Question 35 of 38
35. Question
How do lenses fix myopia?
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Question 36 of 38
36. Question
How do lenses fix hyperopia?
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Question 37 of 38
37. Question
What can laser surgery now be used to do?
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Question 38 of 38
38. Question
What can replacement lenses now do?
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