视疲劳是由于近距离工作或学习而诱发的非器质性或神经精神性的自觉症状．包括屈光不正性、眼肌性、调节性及辐辏不足和融合功能不良等[1]，针对病因的治疗一般都比较满意。但对顽固性功能失调，药物不易奏效者，我们采用颈交感节注射以改善眼部血循环及交感神经功能，取得了十 Visual fatigue is due to close working or learning induced non-organic or neuropsychiatric symptoms. Including refractive errors, ocular muscle, accommodative and convergence insufficiency and poor fusion [1], the treatment of the cause are generally more satisfactory. However, for refractory dysfunction, drugs are not effective, we use cervical sympathetic injection to improve ocular blood circulation and sympathetic function, made ten