Retinal Cinematography Using Modified Zeiss Camera

Abstract

As retinal photography assumes a progressively greater role in both research and clinical medicine, the advantages of cinematography become increasingly desirable. A dynamic record of alterations in the structure, amplitude, and blood flow of the retinal vessels would provide an immediate addition to our knowledge of retinal circulation and an important contribution to our ultimate understanding of specific disease entities. Until recently the use of retinal cinematography was prevented by the intolerance of the retina for light of the intensity and duration necessary to produce clear cine pictures. The development of faster film emulsion has helped to overcome this handicap, and systems of retinal cinematography have been devised. Bailey and Swan¹ (1959) have described a device which combines a dissecting microscope body with a condensing lens. Stenstrom² has used a technique adapted from indirect ophthalmoscopy. It is the purpose of this paper to describe another system: a modification