目的 :探讨高压氧治疗急性视神经炎的疗效及机理。方法 :回顾分析高压氧治疗急性视神经炎74例患者的临床资料。治疗方法皆为高压氧加用扩血管药物。结果 :视乳头炎有效率达 72 .3% ,球后视神经炎有效率达 77.5 % ,两组总有效率达 78.3%。结论 :高压氧是治疗急性视神经炎的有效方法 ,治疗时机宜早不宜迟 Objective: To investigate the efficacy and mechanism of hyperbaric oxygen in the treatment of acute optic neuritis. Methods: A retrospective analysis of hyperbaric oxygen in the treatment of acute optic neuritis in 74 patients with clinical data. Treatment are hyperbaric oxygen with vasodilator drugs. Results: The effective rate of papillitis was 72.3%. The effective rate of posterior optic neuritis was 77.5%. The total effective rate was 78.3% in both groups. Conclusion: Hyperbaric oxygen is an effective treatment for acute optic neuritis, the timing of treatment should not be late