Optics
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.
1
2
3
4
5
Check
Across:
3.
The clear fluid that fills the front part of the eye ball
5.
Spot where the optic nerve leaves the retina
Down:
1.
The most common cause of blindness
2.
The coloured part of an eye
4.
Size of pupil in bright light
OK