| Literature DB >> 832965 |
A R Rosenthal, M S Kottler, D D Donaldson, D G Falconer.
Abstract
The reproducibility of digital photogrammetry of optic nervehead photographs taken with the Zeiss fundus camera with Allen stereoseparator, the Donaldson fundus camera, and the Zeiss fundus camera with twin-prism separator were evaluated. Reproducibility of the various quantitative factors was significantly better when the two types of simultantic cups. Larger per cent errors were encountered with shallower optic cups. Substantial improvements in parameter reproducibility were obtained when finer sampling intervals were used during film digitization.Mesh:
Year: 1977 PMID: 832965
Source DB: PubMed Journal: Invest Ophthalmol Vis Sci ISSN: 0146-0404 Impact factor: 4.799