Pseudomyopia is caused by excessive eye use, continuous contraction and spasm of the ciliary muscle and increased thickness of the lens, resulting in blurred vision of distant objects. Thereafter, the use of medication, acupuncture, buried ear acupuncture and physical therapy instruments, or through the patient’s own strengthening of eye muscle exercise and other methods to relax the muscle and relieve fatigue can restore vision to normal after a period of time. In other words, myopia that can be reversed is pseudomyopia. The easiest and most reliable way to identify true and false myopia in clinical practice is dilated optometry. 1, the method of determining pseudomyopia 1, dilated pupil optometry: if the pupil dilated vision remains the same for true myopia, vision increases for pseudomyopia; optometry with myopic refraction for true myopia, no myopic refraction for pseudomyopia. 2, cloud method: let the patient wear +3.0D spherical lens in both eyes at the same time, look at distant objects for 3 minutes, remove the right lens, then check the left eye by the same method, check the bare eye visual acuity, visual acuity progress for pseudomyopia, not progress for true myopia. 3.Dynamic inspection method: If the patient’s eyes are all radially retrograde, then it is true myopia, if all radially are moving or not moving, or a radially moving, another radially not moving for positive or farsighted, then it is pseudomyopia. 2, the prevention of pseudomyopia 1, do more outdoor sports, daily outdoor activities for at least 2 hours; 2, to avoid eye fatigue, more eye exercises, to ensure adequate sleep time; 3, to maintain the correct sitting posture, indoor light should be appropriate, not too bright or too dark; 4, to develop good health habits, avoid frequent rubbing eyes with hands; 5, eat more carrots, cabbage, milk, eggs, animal liver, etc. foods rich in vitamin A.