[Failures of the primary procedure in the surgical treatment of retinal detachment. Apropos of 50 cases].

A study of 50 failures in retinal detachments operated on as a primary procedure (23 p. 100 of retinal detachments operated in one year). The causes of the most frequent failures relate to the anatomical severity of the detachment and the tears, but a certain number of insufficiencies in the pre-operative examination and failures of surgical procedure are discussed.