Clinical Studies on the Normal Retinal Circulation Times

ABSTRACT

After injection of See of 10% fluorescein sodium into the antecubital vein, the arm-to-retinal times of 22 normal adults were measured by watching through KOWA fundus camera (exciter filter Fuji 18, barrier filter Kodak Wratten 15G), and the retinal circulation times of 13 normal adults were measured with pictures of the serial fluorescein angiography by ZEISS fundus camera (exciter filter Kodak Wratten 47A, barrier filter Schott GG14). The normal ranges and the mean values of arm-to-retinal time and retinal circulation time are 1. Arm-to-retina time; 9.0 sec. - 21.5 sec. (mean; 14.1 sec.). 2. Retinal circulation time; a. Early venous phase; 1.0 sec. - 5.0 sec. (mean; 2.6 sec.). b. Late venous phase; 4.5 sec. - 11.0 sec. (mean 8.1 sec.).