Modification of a Kowa RC-2 fundus camera for self-photography without the use of mydriatics

PHILPOTT, D. E., P. F. BAILEY, G. HARRISON AND C. TURNBILL. Modification of a Kowa RC-2 fundus camerafor self-photography without the use of mydriatics. BRAIN RES. BULL. 4(1) 123–125, 1979.—Research on retinal circulation during space flight required the development of a simple technique to provide self monitoring of blood vessel changes in the fundus without the use of mydriatics. A Kowa RC-2 fundus camera was modified for self-photography by the use of a bite plate for positioning and cross hairs for focusing the subject's retina relative to the film plane. Dilation of the pupils without the use of mydriatics was accomplished by dark-adaption of the subject. Pictures were obtained without pupil constriction by the use of a high speed strobe light. This method also has applications for clinical medicine.