title: Is perception of light useful to the blind patient?
authors.forename: R D
authors.initials: RD
authors.lastname: Ross
mesh_terms: D001766:Blindness / Q000503:physiopathology*; D006801:Humans; D008027:Light; D014785:Vision, Ocular / Q000502:physiology; D014792:Visual Acuity / Q000502:physiology; D014796:Visual Perception / Q000502:physiology*