Optic coherence tomography in a patient with diffuse unilateral subacute neuroretinitis

Intraretinal worm documented by optical coherence tomography in a patient with diffuse unilateral subacute neuroretinitis: case report

“…In our case, OCT showed that both retinal nerve fiber layer (RNFL) and macular thickness measurements were severely reduced, suggesting that changes in later stages of disease were secondary to diffuse inflammatory or toxic process involving both the inner and outer retinal layers as well the optic nerve. The reduction of RNFL thickness measurements in patients with DUSN was previously demonstrated in others studies (4)(5) . Many authors have tried to establish the exact location of the nematode in the ocular fundus using non invasive methods but have been unsuccessful (6)(7) .…”

Spectral Domain Optical Coherence Tomography in Diffuse Unilateral Subacute Neuroretinitis

“…Previous studies reported a reduction in RNFL thickness in patients with late-stage DUSN using the GDx nerve fiber analyzer [6] and Stratus OCT [7, 8]. In a study with 38 patients diagnosed with late-stage DUSN, Gomes et al reported a significant decrease in RNFL thickness and a correlation with the low visual acuity presented by these patients [7]. Casella et al reported the presence of RNFL atrophy even in patients with good visual acuity [8].…”

Retinal nerve fiber layer atrophy as relevant feature for diffuse unilateral subacute neuroretinitis (DUSN): case series

“…Some authors observed by OCT, that retinal nerve fiber layer thickness in DUSN patients is directly proportional to visual acuity (7) . Conversely, in Case 3, it was observed that a profund lesion of the retinal nerve fiber layer is not accompanied by severe visual acuity loss.…”