dioptometer
noun
di·op·tom·e·ter
(ˌ)dī-ˌäp-ˈtäm-ət-ər 
: an instrument used in measuring the accommodation and refraction of the eye
Cite this Entry
“Dioptometer.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/dioptometer. Accessed 31 Oct. 2025.
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