Training Methods The right way to get twice the result with half the effort 1, the trainer needs to wear red and green glasses, holding a small card placed at a distance of 40 centimeters from the position of the eyes. 2, at this time the left eye (green) can see the pink letters on the white background, the right eye (red) can see the black letters on the red background, then read the letters on the white background using the left eye to read the letters on the red background using the right eye. 3, will be a small card hand-held placed in the near (from the eyes of the position of the 40 centimeters), and then placed in the far distance (from the eyes of the position of the 3 meters), the large card is fixed. 4. Read the characters on the near and far cards consecutively and alternately. Refer to the alphabet training method for training methods.