[2 new visual acuity tests for children: the Cadet letters and Cadet images]

The authors present two new visual tests for preschool children: the Cadet letters and the Cadet images, work of the Cadet (Cercle d'Action et de Dépistage des Troubles visuels de l'enfant). The Cadet lettres prospects the angular acuity of children on and after three years. The Cadet images prospects the psychomorphoscopic visual acuity of children on and after two years.