Optical coherence tomography (OCT) angiography of central retinal artery occlusion in the patent cilioretinal artery: a case report

ABSTRACT Here we report the case of a 78-year-old male patient with a 2-day history of low visual acuity and fundus and who was diagnosed with central retinal artery occlusion. In addition, the patient had an allergy to fluorescein. A fundus examination of the left eye found a pink optic disc with blurred margins, diffuse pallor in the retina with arterial attenuation, and a normal band of the retinal area in the macular region. Optical coherence tomography revealed increased thickness of the inner retina. Optical coherence tomography angiography (OCT-A) revealed a decreased flow signal in the superficial layers, with reduced flow signal in the choriocapillaris. OCT-A is a valuable alternative during the follow-up period in patients with central retinal artery occlusion, particularly in those with an allergy to contrast agents. The use of this as a non-invasive examination can improve the prognosis of patients and future studies investigating the treatment of central retinal artery occlusion.

摘要：本研究报道1例78岁男性患者病例，该患者有2天的视力低下及眼底异常病史，确诊为视网膜中央动脉阻塞。该患者对荧光素存在过敏反应。左眼眼底检查显示：视盘色粉红、边界模糊，视网膜弥漫性苍白伴动脉管径变细，黄斑区视网膜带形态正常。光学相干断层扫描（Optical coherence tomography）结果显示视网膜内层厚度增加。光学相干断层扫描血管成像（Optical coherence tomography angiography, OCT-A）可见浅层血流信号减低，脉络膜毛细血管层血流信号亦有所降低。对于视网膜中央动脉阻塞患者，尤其是对比剂过敏者，光学相干断层扫描血管成像可作为随访阶段的有效替代检查手段。该非侵入性检查方式不仅可改善患者预后，亦可为未来开展视网膜中央动脉阻塞治疗相关研究提供助力。