title: Bifocal contact lenses.
authors.forename: J E
authors.initials: JE
authors.lastname: Josephson
mesh_terms: D003261:Contact Lenses / Q000592:standards*; D006801:Humans; D055095:Optics and Photonics; D011305:Presbyopia / Q000628:therapy*; D012107:Research Design / Q000592:standards; D014792:Visual Acuity