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iris diaphragm

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
iris diaphragm
n.
A circular device with a variable diameter, commonly used on cameras to regulate the amount of light admitted to a lens.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.iris diaphragmiris diaphragm - diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
iris
diaphragm, stop - a mechanical device in a camera that controls size of aperture of the lens; "the new cameras adjust the diaphragm automatically"


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Kahn Medical Devices has developed an artificial iris diaphragm implant (NewIris)tm in light brown, light green or light blue, that is positioned into the eyes under topical anesthesia through a controlled and safe ambulatory surgery.
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