title: [Improvement of visual acuity in lens opacities using an optic aperture (author's transl)].
abstract: A diaphragm, placed in front of the eye acts as an artificial pupil as well as a field stop. The improvement of visual performance in the presence of opacities is due to its action as a field stop.
mesh_terms: D002386:Cataract / Q000628:therapy*; D006801:Humans; D009988:Orthoptics / Q000295:instrumentation* / Q000379:methods; D011680:Pupil; D014792:Visual Acuity; D014794:Visual Fields
vernacular_title: Kommentar zu: Besserung der Sehfähigkeit bei Linsentrübungen durch optische Blende