Pronunciation /ˈɒptɪk(ə)l/
1 Relating to sight, especially in relation to the action of light.
1.1 Constructed to assist sight.
1.2 Relating to the science of optics.
2 Physics
Operating in or employing the visible part of the electromagnetic spectrum.
2.1 Electronics (of a device) requiring electromagnetic radiation for its operation.


Tom looks forward to better optical acuity after cataract surgery.


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