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Fritz Steiner Many faces of Irlen - Many faces of Visual Impairment

Dr. med. Doris Safra and Fritz Steiner

Unusual Postneuritic Disturbances and their reduction by a colour filter

Fritz Steiner

Visual Acuity and Irlen Syndrome - Some findings
Dr. med. Doris Safra The phenomenon of treatment with coloured filter glasses
Giuseppe Barbolini, Andrea Lazzerini, Luigi Alberto Pini, Fritz Steiner, Giancarlo Del Vecchio, Mario Migaldi, Gian Maria Cavallini Malfunctioning cones and remedial tinted filters