Diffuse unilateral subacute neuroretinitis: a case report
Diffuse unilateral subacute neuroretinitis (DUSN) is a subacute outer retinal inflammation due to the presence of a worm. The following case has been published in the Oman Journal of Ophthalmology.

A 38-year-old female presented with a subacute visual loss in her right eye. Her medical and ophthalmic histories were unremarkable. Best-corrected visual acuity was 20/40 on the right and 20/20 on the left eyes. Anterior segment examination and intraocular pressure were unremarkable in both eyes.

Fundus examination of the right eye showed disc edema, multiple evanescent gray-white outer retinal lesions all over the fundus with a white thread-like mobile structure in the superior macula suggesting a worm-like structure. There was no vitritis. Examination of the left eye was normal. Complete hemogram, peripheral blood smears, absolute eosinophil count, and stool examination were normal.

High-definition optical coherence tomography (HD-OCT) scans through the retina at the site of the worm showed hypo- and hyper-reflective structures in the subretinal space suggesting the subretinal location of the worm with surrounding inflammation.

Laser photocoagulation of the worm was done (400 mW, 0.2 s, 300 spots, 200 μ spot size). At 1-month post laser, her vision improved to 6/6. The evanescent lesions faded. HD-OCT scans revealed a hyperreflective scar and resolution of the inflammation.

Read in detail about the case here: https://pxmd.co/szNxj
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