Maddox rod

noun

Mad·dox rod ˈmad-əks-ˌräd

: a transparent cylindrical glass rod or one of a series of such rods placed one above another for use in testing the eyes for heterophoria

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Maddox rod

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“Maddox rod.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Maddox%20rod. Accessed 31 Oct. 2025.

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