Medical Definition of aftercataract
: a clouding of the lens capsule (as from the deposit of fibrous matter or overgrowth of epithelial cells) that sometimes occurs following an operation for cataract removal <Miotics reduced visual acuity markedly when aftercataracts left dense opacities in the center of the pupil.—Charles D. Phelps and Nour I. Arafat, Archives of Opthalmology, November 1977>
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