Vision Accessory Structures

Crossword Puzzle

Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Across:

2. When the ciliary muscles contract, this is the shape of the lens
4. The jelly like fluid in the posterior chamber behind the lens (2 words)
6. The accessory structure that controls the amount of light entering the eye
9. The term to define the condition where there is too much refraction for the eyeball length
11. The lens has the same shape as this type of spherical lens which also causes light to converge
13. The muscular structure that controls the entry of light into the eye
14. In bright light the pupil will change in this way
17. The middle vascular layer of the eyeball
18. The outer tough connective tissue layer of the eyeball
19. Actions of the sympathetic pathway do this to the pupil

Down:

1. The primary role of the visual accessory structures, which allows light rays to come to a sharp point image on the retina
3. The structures holding the lens in place
5. The inner most layer of the eye
7. The technical term for the condition where there is inadequate refdraction for the eyeball length
8. The main action of the accessory structures on light rays, to bring them to a sharp image on the retina
10. When going from viewing a distant to a near object, the tripartite changes at the eye are collectively called this (2 words)
12. The ability of the lens to change curvature to acquire a greater refractive index
15. The outer layer of iris muscles is organized in this fan-like shape
16. When the lens becomes cloudy and vision deteriorates