FIELD: light industry. SUBSTANCE: restricting device has light-tight shield 1 with adjustable vision sector and member allowing shield 1 to be retained on user's head. Retaining member may be formed as resilient belt or it may be provided with slotted flexible clip 6. Regulator 7 is positioned for movement and fixation in slot. Device may be positioned below the level of eyes of sportsmen of such events as football, handball, basketball, and above the level of eyes, for example in volleyball. Device may be used by sportsmen in light athletics, in such events as length jumping or triple jumping. Vision restrictor facilitates acquiring skills in receiving, handling and guiding ball under conditions unsuitable for sportsmen. EFFECT: simplified construction and wider capabilities. 3 cl, 5 dwg
