Crossword puzzle clue "unit of optical power of a lens"

Here are the possible solutions for unit of optical power of a lens clue

Answer
Clue
Relevancy
diopter
Clue
Unit of optical power of a lens
Unit of refractive power of a lens
Definition
a measure of refractive power, also DIOPTRE
lumen
Clue
Optical unit
Definition
(Latin) a unit of luminous flux
aas
Clue
Batteries in optical mice
Definition
AA, (Hawaiian) a volcanic rock consisting of angular blocks of lava with a very rough surface
aorb
Clue
Optical illusion question, "Which is longer, ___?"
Optical illusion query, “Which is longer, ___?”
'Which is longer, --?' (optical illusion question)
aperture
Clue
Optical opening
Definition
an opening

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