Survey on retrolental fibroplasia in France

From 1964 to 1976, 20 cases of retrolental fibroplasia were recorded in the south of France while 38 cases were recorded in the north from 1970 to 1977. The more children are immature, the more they are liable to suffer from this disease. Etiological factors are apparently not limited to oxygen, which however plays the most important part in the process.