Ophthalmic Surg Lasers Imaging Retina. 2021 Jun;52(6):345-349. doi: 10.3928/23258160-20210528-07. Epub 2021 Jun 1.
Diffuse unilateral subacute neuroretinitis (DUSN) is a rare form of chorioretinitis caused by retinal infestation by nematode larvae. Definitive diagnosis requires visualization of a motile nematode, but this can be challenging because the nematode is small, translucent, and usually motionless with overlying media opacity from cellular inflammation. The authors describe a case of DUSN in which widefield swept-source optical coherence tomography angiography was used to localize a midperipheral intraretinal nematode facilitating subsequent clinical observation of movement. Inflammation resolved after focal laser photocoagulation of the nematode with recovery of visual acuity to 20/20. .
弥漫性单侧亚急性神经视网膜炎（DUSN）是一种罕见的脉络膜视网膜炎，由视网膜被线虫幼虫侵袭引起。明确的诊断需要观察到活动的线虫，但这可能具有挑战性，因为线虫很小、半透明，并且通常在细胞炎症引起的上方介质不透明的情况下处于静止状态。作者描述了一例 DUSN，使用广角扫频源光学相干断层扫描血管造影术定位周边视网膜内的线虫，便于随后对其运动进行临床观察。通过对该线虫进行局灶性激光光凝治疗后炎症消退，视力恢复至 20/20。
