The Human Eye and Colourful World
Crossword
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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5
Check
Across:
1.
The ability of the eye lens to adjust its focal length
5.
difficult to see nearby objects comfortably and distinctly without
corrective eye-glasses
Down:
2.
the crystalline lens of people at old age becomes milky and
cloudy
3.
near-sightedness
4.
far-sightedness
OK