Light-Sensitive Part of the Eye
Puzzle 18 of Home Improvement Easy Pack
Question is: Light-Sensitive Part of the Eye
and the answer is: RETINA
Word Meaning:
RETINA — (ophthalmology) The thin layer of cells at the back of the eyeball that contains rods and cones sensitive to light, which trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.
Definitions from Wiktionary.