title: [Reading aid with a big Fresnel lens for visually handicapped].
mesh_terms: D001296:Audiovisual Aids; D006801:Humans; D007909:Lenses; D011932:Reading; D014786:Vision Disorders / Q000534:rehabilitation*
vernacular_title: Lesegerät für Sehbehinderte mit grobber Fresnel-Linse.