title: Intraocular versus contact lenses: results of a three year comparative trial in a presenile age group.
mesh_terms: D000368:Aged; D003261:Contact Lenses; D003867:Depth Perception; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D010349:Patient Compliance; D014792:Visual Acuity