Apparatus for detecting and treating troubles with binocular vision

Apparatus for detecting and treating troubles with binocular vision especially of a baby, the apparatus comprising a frame for use in front of the eyes of the baby and means for holding said frame in such an in-use position, said frame being transparent at least in those regions thereof intended to be placed directly in front of the center of the eyes' pupils, and the apparatus including at least one moving opaque element wherein support and guide means are fixed to the frame for supporting said at least one movable opaque element and for guiding reversible movement thereof relative to said frame under the effect of gravity between three position:

• a first position in which said opaque element uncovers the both pupil centers;
• and second and third positions in which it prevents vision with respectively the one or other of the eyes, by covering the corresponding pupil center, depending on the tilting of the head of the baby and wherein the movavle element is dimensioned so that it is not obstructed by the nose of the baby when moved between the said three positions.