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

To report the findings of optical coherence tomography (OCT) in three cases of diffuse unilateral subacute neuroretinitis (DUSN). Three young patients with confirmed diagnosis of diffuse unilateral subacute neuroretinitis were followed-up using Stratus OCT. Optical coherence tomography findings incl...

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Bibliographic Details
Published in:Arquivos brasileiros de oftalmologia 2010-03, Vol.73 (2), p.182-185
Main Authors: Casella, Antonio Marcelo Barbante, Farah, Michel Eid, Souza, Eduardo Cunha de, Belfort, Jr, Rubens, Oguido, Ana Paula Miyagusko Taba
Format: Article
Language:English
Subjects:
Acute Disease
Adolescent
Atrophy
Child
Eye Infections, Parasitic - diagnosis
Eye Infections, Parasitic - pathology
Eye Infections, Parasitic - surgery
Female
Follow-Up Studies
Humans
Light Coagulation
Male
Nerve Fibers - parasitology
Nerve Fibers - pathology
OPHTHALMOLOGY
Retinitis - diagnosis
Retinitis - parasitology
Retinitis - pathology
Retinitis - surgery
Tomography, Optical Coherence
Visual Acuity
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Summary:To report the findings of optical coherence tomography (OCT) in three cases of diffuse unilateral subacute neuroretinitis (DUSN). Three young patients with confirmed diagnosis of diffuse unilateral subacute neuroretinitis were followed-up using Stratus OCT. Optical coherence tomography findings included retinal nerve fiber layer atrophy and focal edema where the worm was initially lodged. In two patients we could identify the worm by optical coherence tomography as an area of hiper-reflectivity. The worms were laser photocoagulated and post-treatment optical coherence tomography scanning revealed improvement of edema, nerve fiber layer thinning and a retinal hyper-reflectivity where laser had been applied. The main finding reported here is the potential of optical coherence tomography in detecting the presence of retinal nerve fiber layer atrophy and focal retinal edema in areas affected by the worm. Optical coherence tomography can be used to distinguish diffuse unilateral subacute neuroretinitis from other mimicking diseases like punctate outer retinitis, when there are no retinal fiber layer atrophy.
ISSN:0004-2749
1678-2925
1678-2925
DOI:10.1590/S0004-27492010000200017