Some clinical amblyopia is difficult to cure because of the poor treatment effect of general methods, which is called refractory amblyopia or refractory amblyopia. Treatment points: 1. Early treatment can be started at the age of 2-3 years. If you do not cooperate with glasses, you can wear them part of the time, such as 2-3 hours a day. Before you can’t recognize the vision table, you can use red light, blue light (light brush) gram light (visual physiological stimulation) will recognize the vision table, and then add the level of fine vision – contrast sensitivity to increase vision. 2, with appropriate glasses, every 1/2-1 years, as appropriate, to change the film. 3, use the 3rd generation or above, preferably the 4th generation binocular amblyopia comprehensive instrument Choose 3 functions at a time, treat for 15-20 minutes, and enhance treatment 2-3 times a day. The following principles should be observed: 1. Indirect vision enhancement and direct vision enhancement should be used together in order to give full play to the complementary effect. 2, it is best to do a daily grade fine vision or contrast sensitivity enhancement training. 3, the best direct vision enhancement function is the level of fine vision – contrast sensitivity enhancement, followed by hand-brain-eye coordination vision enhancement. The best direct vision enhancement function is the Hedinger light brush. Functionally strong and strong with more help to improve vision. 4, long-term persistent treatment, most need to treat more than six months.