di·​op·​trics | \ dī-ˈäp-triks How to pronounce dioptrics (audio) \

Medical Definition of dioptrics

1 : a branch of optics dealing with the refraction of light especially by lenses
2 : refractive optics especially of a lens or system of lenses correction of refractive error of the peripheral dioptrics of the eye— Anne Lamont et al

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