Rosenthal A R, Kottler M S, Donaldson D D, Falconer D G
Invest Ophthalmol Vis Sci. 1977 Jan;16(1):54-60.
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.
评估了使用带有艾伦立体分离器的蔡司眼底相机、唐纳森眼底相机以及带有双棱镜分离器的蔡司眼底相机拍摄的视神经乳头照片的数字摄影测量的可重复性。当有两种同时存在的视杯类型时，各种定量因素的可重复性明显更好。较浅的视杯会出现更大的百分比误差。在胶片数字化过程中使用更精细的采样间隔时，参数可重复性有了显著提高。
