Inverted butterfly mirror is a modern eye protection tool, which can exercise eye function anytime and anywhere, fully mobilize the potential of eyes, improve reading speed and make eyes more comfortable.
Conventional training methods:
1, put the video card at a distance of 40 cm, usually 20/30 or 20/40 or 20/50.
2. Prepare a 2.00D double mirror (please use 1.50D if you can't see clearly).
3. Prepare the RockCard (single letter card) in the visual card, and gradually train it to 3-letter card, 4-letter card and 5-letter card.
4. Put +2.00D in front of your eyes and quickly flip the double mirror of +2.00d, which requires you to see the letters on the eye chart clearly.
5. Read each letter aloud according to the number 1-40 on the letter card, flip the 2.00-d double mirror repeatedly, and it is best to cooperate with the lens as soon as possible, and always keep the font of the reading object clear.
6. Both eyes should be trained, 1-2 times a day, 10- 15 minutes each time.
7. The reaction time after training should not be less than 1 week /3 seconds, that is, 20 weeks per minute, and the difference between eyes should be less than 2 weeks.
8. Generally, 15 days is a training course, and symptoms can be improved.