title: [A new apparatus for objective visual acuity evaluation].
abstract: The Catford Visual Acuity Apparatus is supposed to offer an easy and time-saving possibility for an objective determination of the visual acuity. No useful results were obtained from a survey, including 27 patients of varius age-group, which were examined at the recommended distance. Furthermore, because the examination becomes affected by other negative components, that come into perspective at the optimal distance of examination of 2 meters, this apparatus cannot be recommended for the use of an oculist in his practice.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014787:Vision Tests / Q000295:instrumentation*; D014792:Visual Acuity
vernacular_title: Ein neues Gerät zur objektiven Sehschärfenbestimmung.