title: Bitoric rigid gas permeable lens fitting in highly astigmatic patients.
authors.forename: P R
authors.initials: PR
authors.lastname: Kastl
authors.forename: R G
authors.initials: RG
authors.lastname: Kirby
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001251:Astigmatism / Q000503:physiopathology / Q000628:therapy*; D003261:Contact Lenses; D005260:Female; D005740:Gases; D006801:Humans; D008297:Male; D008875:Middle Aged; D010539:Permeability; D012189:Retrospective Studies
chemical_list: D005740:Gases