Exercise tense and relax
Hold the Vision Stick about 30-40 cm in front of your face. Hold your head up and fixate on a letter on the stick.
Slowly move the stick towards your nose and try to keep the image sharp. As soon as you see the stick double or very blurry, reverse the movement. If the two eyes do not work synchronously, the deviating eye can be trained separately with the help of the eye patch.