Fundus autofluorescence in serpiginouslike choroiditis

To report the fundus autofluorescence characteristics in serpiginouslike choroiditis.

Twenty-nine patients with presumed tubercular serpiginouslike choroiditis between November 2008 and January 2010 underwent fundus autofluorescence imaging during the acute stage and at regular intervals till the lesions healed. All patients received antitubercular therapy with oral corticosteroids. The autofluorescence images were compared with color fundus photography and fundus fluorescein angiography. The main outcome measure was fundus autofluorescence characteristics of lesions during the course of the disease.

The pattern of fundus autofluorescence changed as the lesions evolved from the acute to the healed stage. In acute stage, the lesions showed an ill-defined halo of increased autofluorescence (hyperautofluorescence), giving it a diffuse, amorphous appearance (Stage I, acute). As the lesions began to heal, a thin rim of decreased autofluorescence (hypoautofluorescence) surrounded the lesion, defining its edges. The lesions showed predominantly hyperautofluorescence with stippled pattern (Stage II, subacute). With further healing, the hypoautofluorescence progressed and the lesion appeared predominantly hypoautofluorescent with stippled pattern (Stage III, nearly resolved). On complete healing, the lesions became uniformly hypoautofluorescent (Stage IV, completely resolved).

Fundus autofluorescence highlighted the areas of disease activity and was a quick imaging tool for monitoring the course of lesions in serpiginouslike choroiditis.