Indoor mold spore exposure: a possible factor in the etiology of multifocal choroiditis

To report on the correlation between indoor mold exposure and a case of multifocal choroiditis (MFC). Observational case report. A 37-year-old woman diagnosed with MFC who had had extensive mold exposure underwent an allergic evaluation, including a comprehensive environmental history, physical examination, radioallergosorbent test, and skin testing. The patient’s vision deteriorated after numerous recurrences of MFC triggered by exposure to extremely high mold environments (mold counts recorded between 3,000 and 13,000 mold spores/m3). Exposure to high indoor mold count environments may be a factor in the etiology of MFC. Further studies are indicated.