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

PURPOSE: To report on the correlation between indoor mold exposure and a case of multifocal choroiditis (MFC). DESIGN: Observational case report. METHODS: 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. RESULTS: 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/m(3)). CONCLUSIONS: Exposure to high indoor mold count environments may be a factor in the etiology of MFC. Further studies are indicated.