Abstract
The optical principle described earlier, of centering a fundus camera on the cornea by a removable lens, has been extended to produce permanent marks on the film by two more eccentrically mounted lenses. A versatile stereoscopic comparison system makes use of A5 cards on which the fundus pictures are glued in alignment. Experience with a flicker comparator designed for film comparison after Bengtsson and Krakau is reported.
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Lotmar, W. Rapid detection of changes in the optic disc: stereochronoscopy. Int Ophthalmol 2, 169–174 (1980). https://doi.org/10.1007/BF00137963
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DOI: https://doi.org/10.1007/BF00137963