Objective To observe the characteristics of pupillary light reflex in the patients with retrobulbar neuritis, and to evaluate the effects of pupillary light reflex on the diagnosis and treatment of retrobulbar neuritis. 目的了解球后视神经炎(RON)患者的瞳孔对光反射特征,探讨瞳孔对光反射检查在RON诊断和治疗中的临床应用价值。