[Posterior vitreous detachment with collapse, and peripheral retinal degeneration in the aetiology of idiopathic retinal detachment. A synapsis of clinical observations and anatomical studies (author's transl)].

The crucial aetiological factors of idiopathic retinal detachment are posterior vitreous detachment with collapse, and degenerative lesions in the fundus periphery. Posterior vitreous detachment does not imply diagnostic problems to the expert in this field. On the other hand, the peripheral retinal degenerations include wide range of lesions the clinical and pathoanatomical study of which has so far not resulted in a complete picture. The author of the present paper attempts to get closer to a clearly arranged classification and terminology of those peripheral retinal degenerations, which are of importance to the aetiology, prophylaxis and treatment of idiopathic retinal detachment.