title: Determination of the cardinal positions of a lens system by the 'step-along' method.
authors.forename: C Y
authors.initials: CY
authors.lastname: Tang
mesh_terms: D000839:Aniseikonia / Q000503:physiopathology*; D006801:Humans; D007910:Lenses, Intraocular; D012029:Refraction, Ocular