title: High and low contrast acuity.
authors.affiliation: Toronto Hospital, Ontario, Canada.
authors.forename: D
authors.initials: D
authors.lastname: Regan
mesh_terms: D015350:Contrast Sensitivity; D006801:Humans; D014786:Vision Disorders / Q000175:diagnosis; D015351:Vision Screening / Q000295:instrumentation / Q000379:methods; D014792:Visual Acuity