title: Surgically induced astigmatism is characterized by optical vectors, not by ratios.
authors.affiliation: Randers, Denmark.
authors.forename: Kristian
authors.initials: K
authors.lastname: Næser
mesh_terms: D001251:Astigmatism / Q000601:surgery*; D003315:Cornea / Q000503:physiopathology*; D006801:Humans