Videographic quantification of optic disc pallor.

@article{Miller1988VideographicQO,
  title={Videographic quantification of optic disc pallor.},
  author={Joseph M. Miller and Joseph Caprioli},
  journal={Investigative ophthalmology & visual science},
  year={1988},
  volume={29 2},
  pages={
          320-3
        }
}
Digitized images of the optic disc, acquired videographically (Rodenstock Analyzer) under green (540 nm) and red (640 nm) illumination, were used to quantify optic disc pallor. The pallor density of each pixel was defined as twice the reflectance under green illumination divided by the sum of the reflectance under red and green illumination. Pallor densities can range from 0 (red) to 1 (white); typical median values were 0.25 for vessels, 0.40 for healthy disc rim, and 0.70 for the lamina… CONTINUE READING

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