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Short "hint"

n. - Reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller;

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Usage examples (11)
  • March 12, 2008 at 12:05 pm oar is dat myosis i be thinkin ob… hmmm sbeen long time sinz microbyolgy
  • Usually it is taught that because of the myosis the base of the iris wedged in the angle of the anterior chamber is loosened and withdrawn, precisely as a fold in a coat...
  • I believe that the two most important instillations during the twenty-four hours of the number necessary to maintain this myosis are on retiring and if possible in the...
  • It is my own belief, and that of many who have studied this subject, that if, without eserin irritation, a myosis can be maintained, and if the treatment can be begun...
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