noun, plural in form but singular in construction

di·​op·​trics dī-ˈäp-triks How to pronounce dioptrics (audio)
: a branch of optics dealing with the refraction of light especially by lenses
: refractive optics especially of a lens or system of lenses
correction of refractive error of the peripheral dioptrics of the eyeAnne Lamont et al.

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Cite this Entry

“Dioptrics.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/dioptrics. Accessed 11 Dec. 2023.

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