Glasses are required for reverse beat training. Because reverse beat training is based on the correction of refractive errors, it is necessary to wear the appropriate prescription eyeglasses. The function of reverse beat training is mainly to improve eye adjustment and enhance the range of adjustment between near and far. Correct use of the inverse racket can relieve eye fatigue and play a role in preventing and controlling eye myopia. If there is refractive error but do not wear the right prescription glasses and carry out the inverse beat training, may lead to over-adjustment of the eyes, not only can not play a role in relieving the effect, but also may play the opposite effect. It is recommended that the patient go to the ophthalmology department of a regular hospital, under the guidance of the doctor for an optometric examination and wear the appropriate prescription glasses for reverse beat training.