Orthoptic Snail is a game for children with eye movement disorders. Its important to consult your orthoptist, ophthalmologist or optometrist first.Remember: 1. Practice always together with a child2. Both childs eyes must be directed to the center, if one of the eyes "drifts away" immediately move the device further away.3. Practice at one time up to 5 minutes.4. It does not replace therapy!Minor problems fixed