Effectiveness of Virtual Reality Training in Amblyopia

Inclusion Criteria: Age 4-7 years old (including 4 and 7 years old), both sexes; Monocular amblyopia was diagnosed; The corrected visual acuity of amblyopia is between 0.2 (inclusive) and 0.6, and the binocular visual difference is more than 2 lines; The guardian of the subject can understand the purpose of the trial and sign the informed consent. The subject can cooperate with the treatment and related ophthalmic examination Exclusion Criteria: The subject has tumor, heart disease, hypertension and epilepsy; The subject has an implanted electronic device, such as a pacemaker; The subject has suffered from mental illness; Subject suffers from vertigo, fear of heights or brain trauma; The subject has photophobia and tears caused by keratitis, conjunctivitis, internal trichiasis and other diseases at any time; The subject has strabismus or congenital cataract, congenital ptosis, trauma and other ocular organic lesions and related surgical history; Subject has had any form of treatment for amblyopia other than refractive correction and covering treatment. Other conditions, such as severe heart, liver and kidney disease, under which the investigator considers that the patient should not participate in the trial for safety reasons or in the interest of the patient.