A prototype of a wide-angle ophthalmoscope that will allow viewing the entire retina in a single image is described. The principles determining the design of a wide-angle ophthalmoscope are discussed. Photographs are presented, taken in experimental animals, of the aerial image of the fundus as visualized with this instrument.
Pomerantzeff O, Govignon J. Design of a Wide-Angle Ophthalmoscope. Arch Ophthalmol. 1971;86(4):420-424. doi:10.1001/archopht.1971.01000010422011