title: Contact lenses, refractive surgery, and spectacles: competing modalities or something else?
authors.forename: P C
authors.initials: PC
authors.lastname: Donshik
mesh_terms: D000328:Adult; D003261:Contact Lenses / Q000191:economics / Q000706:statistics & numerical data; D004465:Economic Competition; D005139:Eyeglasses / Q000191:economics / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000191:economics / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D012030:Refractive Errors / Q000628:therapy*