1. Functional training: forehead, eyebrows, nose, eyes closed, grin, smile, shut up, whistle. 2, drugs: nerve growth factor (3 months, every other day intramuscular injection), pro-neural glucose metabolism (vitamin B1), pro-lipid metabolism (vitamin B6 and vitamin B12), peripheral neurovasodilator (dibazol), it neuromediator supplementation, etc. Acupuncture points: Baihui; Shenting; Yin Tang; Yangbai; Sun; Yingxiang; Zygomatic Liao; Di Cang; Cheek Che; Shu Zheng; Cataract 4. 5, imaging review: MRI: postoperative perioperative period, 3-6 months after surgery, and annually thereafter, with a follow-up period of more than ten years.