Vascular obstructive alterations related to chorio-retinitis.

Different stages of retino-choroiditis, many of toxoplasmic origin, may develop vascular alterations. One of these pictures has been observed in relation to old scars of retino-choroiditis, where focal vasculitis may affect the venous return circulation sometimes leading to intraocular hemorrhages and retinal holes of variable severity. The natural history of this process is described, as well as the clinical characteristics and the results of treatment. Generally, the disease has a favorable course and a good prognosis. 18 cases are reported.