Adult Coats Disease Presenting as Subfoveal Nodule

A 21-year-old female presented with decreased vision in the right eye. Best corrected visual acuity was 6/60 in the right eye and 6/6 in the left eye. Funduscopy of the right eye revealed a subfoveal nodule with surrounding exudates and temporal peripheral retinal vessel telangiectasia with exudation. The patient underwent retinal laser in the areas of telangiectatic vessels and capillary non-perfusion as seen on fundus fluorescein angiography. It was combined with an intravitreal injection of bevacizumab which was repeated twice at monthly intervals. The macular lesion and peripheral vessels along with subretinal exudates showed resolution during the course of treatment. However, the patient was lost to follow-up and returned 5 months later when examination revealed increased macular fibrosis. In the literature, the reported presentation of subfoveal nodule in Coats disease is during the first decade. It progresses to macular fibrosis within a few months. This case illustrates that subfoveal nodule before macular fibrosis in Coats disease may present later, even up to the third decade.
Case Rep Ophthalmol 2018;9:232–237

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