[Congenital ocular toxoplasmosis and late recurrences (author's transl)].

Congenital toxoplasmosis is essentially characterized on the ophthalmological point view by a pathognomonic focus of necrotic chorioretinitis in the cicatricial stage and taking the aspect of a rose-window, which is seen in more than 50% of the cases. The late recurrences of this ocular toxoplasmosis are not rare and may be seen in nearly one third of the cases. They may be due to a congenital toxoplasmic cyst, which may exist in a healthy retina in the absence of any old cicatricial focus.