When the student pays attention to different books and notes, his vision loads with a tension that can be released like this:
a) Keeping your back straight, your arms relaxed alongside the body and the head facing forward, close your eyes and rotate your eyeballs vigorously to the right, then in the opposite direction. Repeat this exercise for two minutes.
b) Tense the muscles on your forehead and eyes by closing your eyelids tightly and frowning. Keep this posture for five seconds, then relax slowly. Unwind your forehead, then count to five between gently opening your eyes.
c) Close your eyes tightly then open them alternatively, allotting five seconds for each move, for a total of two minutes. This exercise helps tense and relax the muscles of the forehead, as well as those of the scalp.
d) Sit with your back straight, your head still. Breathe in as you open your eyes and look at everything you can see in front of you. Do this for five seconds, then breathe out. Next, lower your eyes as much as you can without moving your head, and breathe in. Remain like this for five seconds, then breathe out.
Do the same exercise looking to your right, then to your left, without moving your head. Repeat for ten times.