Atypical ophthalmological presentation of neurocysticercosis in two children.

Cysticercosis is an infestation by Cysticercus cellulosae, the larval form of the cestode Taenia solium. C. cellulosae is preferentially encysted in the brain, striated muscles, and subcutaneous tissue. Seizures, hydrocephalus, meningitis, and focal symptoms caused by large cysts are the principal manifestations. Neuroophthalmologic signs are common with the meningitic and hydrocephalic manifestations of the disease. The first ophthalmologic clues of cysticercosis are typically papilloedema, pupillary abnormalities, or nystagmus. We report an atypical presentation of neurocysticercosis in two patients, with chief complaints of vertical diplopia and nystagmus.