title: New formula for vector change in astigmatism.
authors.forename: K
authors.initials: K
authors.lastname: Buzard
mesh_terms: D001251:Astigmatism / Q000175:diagnosis* / Q000209:etiology; D002387:Cataract Extraction / Q000009:adverse effects; D003936:Diagnosis, Computer-Assisted; D006801:Humans; D012029:Refraction, Ocular; D012985:Software Design