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iris diaphragm

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.02 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.
Kahn Medical Will Change The Color Of The Eyes Presenting At Medtech ... by Business Wire
Unlike the photo etching of iris diaphragm delivery systems used by large gas excimer lasers, the LaserSight galvanometric delivery system achieves a photo-polishing of the surface of the cornea.
LaserSight: World's first solid state PRK laser by Business Wire
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