[A contribution on the clinical pictures, fluorescence angiography and histology oe essential progressive iris atrophy (author's transl)].

: The clinical and irisangiographical findings of 2 patients with essential progressive iris atrophy of the juvenile are reported. Histopathological examination was possible in one case. The differential diagnosis including to iridoschisis, Chandler's syndrome, Cogan-Reese (iris-naevus) syndrome is discussed. The aetiology of this rare disease remains obscure. Most authors believe that the iris stroma changes and pigment epithelial atrophy result from a vascular deficiency. Iris angiographical findings confirm this belief. The prognosis is poor, due to the therapy resistant secondary glaucoma. Surgery of the ciliary body appears to be the only possible procedure.