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1例糖尿病患者左眼白内障摘除手术后第3天主诉左眼下方视野遮挡感，伴视力下降。眼底检查见左眼视盘边界欠清，相干光层析成像术及视野检查后诊断为缺血性视神经病变，考虑为患者术前自行用含有肾上腺素的复方托吡卡胺滴眼液点眼过多所致，确诊后及时治疗，患者视力及视野均恢复良好。“,”A diabetic patient complained of sudden visual field defect on the third day after cataract surgery. The fundus examination showed optic disc edema in the left eye, which was diagnosed as anterior ischemic optic neuropathy by optical coherence tomography and visual field examinations. The optic neuropathy was induced by the excessive application of tropicamide phenylephrine eye drops by herself before cataract surgery. After timely treatment, the patient′s vision and visual field recovered well.