Pitkänen Hanna, Saarela Ville
Department of Ophthalmology, Oulu University Hospital, Oulu, Finland.
J Neuroophthalmol. 2014 Dec;34(4):386-8. doi: 10.1097/WNO.0000000000000144.
Transient monocular visual loss (TMVL) usually is due to hypoperfusion of the optic nerve or retinal circulation. After the exclusion of thromboembolic and carotid artery diseases, retinal vasospasm should be considered as an underlying cause of TMVL. We report a patient with an increasing number of transient attacks of unilateral blindness. Vasospasm was confirmed as the etiology by fundus photography during an attack. Nifedipine 10 mg/d decreased the severity of the visual loss and the number of attacks. The patient was relieved of symptoms entirely with a nifedipine dose of 20 mg/d.
短暂性单眼视力丧失（TMVL）通常是由于视神经或视网膜循环灌注不足所致。在排除血栓栓塞性疾病和颈动脉疾病后，视网膜血管痉挛应被视为TMVL的潜在病因。我们报告一名患者，其单侧失明的短暂发作次数不断增加。发作期间通过眼底照相术确诊血管痉挛为病因。硝苯地平10毫克/天可减轻视力丧失的严重程度和发作次数。硝苯地平剂量为20毫克/天时，患者症状完全缓解。
