Diffuse unilateral subacute neuroretinitis with unusual findings

Abstract

Purpose: To report two cases of diffuse unilateral subacute neuroretinitis (DUSN) with unusual findings.

Design: Observational and interventional case series.

Methods: Two patients with DUSN were found to have the unusual findings of a large live worm in one eye and macular cyst in the other. Both patients underwent fundus fluorescein angiography and optical coherence tomography.

Results: Photocoagulation to the worm was performed in one patient; the other received a course of oral albendazole. Both remained stable over six months of follow-up.

Conclusions: We report a case of DUSN due to a worm, the large size of which suggests it to be different from the usual reported causative agents. We also report macular cyst as an associated finding in DUSN.