Meandering ocular toxocariasis.

Ocular toxocariasis affects the eye in three recognizable patterns: a peripheral inflammatory mass in a quiet eye, posterior pole granuloma, or painless endophthalmitis. The present case photographically documents a new form of ocular involvement, that of periodic intraretinal meandering, followed by quiescence with encapsulation, reemergence, and renewed migration. The similar behavior of the Toxocara canis larva in the animal model and the serologic confirmation of Toxocara canis by ELISA testing establishes the diagnosis in the present case. Photocoagulation is the treatment of choice.