Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

Maddox rod

play
noun Mad·dox rod \ˈmad-əks-ˌräd\

Medical Definition of Maddox rod

  1. :  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



Biographical Note for maddox rod

Maddox, Ernest Edmund (1860–1933), British ophthalmologist. Maddox did research on refraction, ocular muscles, and the relation between accommodation and convergence. In 1898 he devised an instrument, consisting of parallel cylindrical glass rods (now called Maddox rods), for testing and measuring the degree of heterophoria.


Seen and Heard

What made you want to look up Maddox rod? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

the range of perception or understanding

Get Word of the Day daily email!