ONE HESITATES to publish another paper on a modification of the Zeiss-Nordenson retinal camera for obtaining fundus photographs in color. A number of papers on such modifications have appeared in recent years.1 There is, furthermore, now obtainable commercially a new retinal camera for such photography which is proving popular. However, we believe that the modification to be reported here, in which a high-speed flash tube is used to provide the light, has advantages over any modification heretofore described.
By using again the ring of light just within the pupil to illuminate the retina, and photographing directly through the center of the pupil, one can obtain pictures which are reflex-free. Because the flash exposure of this tube is of the order of 0.0001 second, the problems of blinking and of the movements of the eye being photographed are eliminated. The use of the flash-tube technique also is less fatiguing and
KENNETH N. OGLE, C. WILBUR RUCKER. FUNDUS PHOTOGRAPHS IN COLOR USING A HIGH-SPEED FLASH TUBE IN THE ZEISS RETINAL CAMERA. AMA Arch Ophthalmol. 1953;49(4):435–437. doi:10.1001/archopht.1953.00920020445008