T,he symposium was opened by a brief report on the recent conference on oxygen use in premature infants. J. Everett Kinsey, Ph.D., and Arnall Patz, M.D., stated that more oxygen was being used at present in order to decrease infant deaths. Dr. Patz recommended routine ophthalmoscopy of premature infants receiving oxygen. If excessive oxygen is being given, the retinal arterioles will show extre...