Crossword Genius

Optician's reading material (3,5)

Ross

I think it could be either:

Which length description are you looking for?:

8

3,5

eye chart

(Another definition for eye chart that I've seen is " reading test".)

I've seen this clue in The Guardian.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.