Crossword Genius

Light-sensitive area at the back of the eyeball (6)

Ross

I believe the answer is:

retina

(Other definitions for retina that I've seen before include "Part of the eyeball" , "Sensitive part of eye" , "Light-sensitive eye layer" , "Light-sensitive eye lining" , "Ocular membrane" .)

I've seen this clue in The Guardian.
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