Abstract

The <i>parafoveal</i> short-wavelength-sensitivity mechanism in a protanopic patient with retinitis pigmentosa was found to lack the secondary (long-wavelength) field-sensitivity mode, a property that is characteristic of Stiles's pi 1 mechanism. The results document that normal protanopic observers also lack this mode and reject the hypothesis that the present measurements reflect a pi 3-like—rather than the pi 1-like—mechanism.

© 1982 Optical Society of America

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  1. E. N. Pugh and J. D. Mollon, "A theory of the pi 1 and pi 3 color mechanisms of Stiles," Vision Res. 19, 293–312 (1979).
  2. R. Young and G. Fishman, "Sensitivity losses in a long wavelength sensitive mechanism of patients with retinitis pigmentosa," Vision Res. (to be published).
  3. R. S. Young, "Early-stage abnormality of foveal pi mechanisms in a patient with retinitis pigmentosa," J. Opt. Soc. Am. 72, 1021–1025 (1982).
  4. R. D. Watkins, "Foveal increment thresholds in protan observers," Vision Res. 9, 1197–1204 (1969).
  5. G. Wyszecki and W. S. Stiles, Color Science: Concepts and Methods, Quantitative Data and Formulas (Wiley, New York, 1967).
  6. F. M. de Monasterio, S. J. Schein, and E. P. McCrane, "Staining of blue-sensitive cones of macaque retina by a fluorescent dye," Invest. Ophthalmol. Vis. Sci. Suppl. 20, 151 (1981).
  7. J. D. Mollon and P. G. Polden, "An anomaly in the response of the eye to light of short wavelengths," Phil. Trans. R. Soc. London Ser. B 278, 207–240 (1977).

1982 (1)

1981 (1)

F. M. de Monasterio, S. J. Schein, and E. P. McCrane, "Staining of blue-sensitive cones of macaque retina by a fluorescent dye," Invest. Ophthalmol. Vis. Sci. Suppl. 20, 151 (1981).

1979 (1)

E. N. Pugh and J. D. Mollon, "A theory of the pi 1 and pi 3 color mechanisms of Stiles," Vision Res. 19, 293–312 (1979).

1977 (1)

J. D. Mollon and P. G. Polden, "An anomaly in the response of the eye to light of short wavelengths," Phil. Trans. R. Soc. London Ser. B 278, 207–240 (1977).

1969 (1)

R. D. Watkins, "Foveal increment thresholds in protan observers," Vision Res. 9, 1197–1204 (1969).

de Monasterio, F. M.

F. M. de Monasterio, S. J. Schein, and E. P. McCrane, "Staining of blue-sensitive cones of macaque retina by a fluorescent dye," Invest. Ophthalmol. Vis. Sci. Suppl. 20, 151 (1981).

Fishman, G.

R. Young and G. Fishman, "Sensitivity losses in a long wavelength sensitive mechanism of patients with retinitis pigmentosa," Vision Res. (to be published).

McCrane, E. P.

F. M. de Monasterio, S. J. Schein, and E. P. McCrane, "Staining of blue-sensitive cones of macaque retina by a fluorescent dye," Invest. Ophthalmol. Vis. Sci. Suppl. 20, 151 (1981).

Mollon, J. D.

E. N. Pugh and J. D. Mollon, "A theory of the pi 1 and pi 3 color mechanisms of Stiles," Vision Res. 19, 293–312 (1979).

J. D. Mollon and P. G. Polden, "An anomaly in the response of the eye to light of short wavelengths," Phil. Trans. R. Soc. London Ser. B 278, 207–240 (1977).

Polden, P. G.

J. D. Mollon and P. G. Polden, "An anomaly in the response of the eye to light of short wavelengths," Phil. Trans. R. Soc. London Ser. B 278, 207–240 (1977).

Pugh, E. N.

E. N. Pugh and J. D. Mollon, "A theory of the pi 1 and pi 3 color mechanisms of Stiles," Vision Res. 19, 293–312 (1979).

Schein, S. J.

F. M. de Monasterio, S. J. Schein, and E. P. McCrane, "Staining of blue-sensitive cones of macaque retina by a fluorescent dye," Invest. Ophthalmol. Vis. Sci. Suppl. 20, 151 (1981).

Stiles, W. S.

G. Wyszecki and W. S. Stiles, Color Science: Concepts and Methods, Quantitative Data and Formulas (Wiley, New York, 1967).

Watkins, R. D.

R. D. Watkins, "Foveal increment thresholds in protan observers," Vision Res. 9, 1197–1204 (1969).

Wyszecki, G.

G. Wyszecki and W. S. Stiles, Color Science: Concepts and Methods, Quantitative Data and Formulas (Wiley, New York, 1967).

Young, R.

R. Young and G. Fishman, "Sensitivity losses in a long wavelength sensitive mechanism of patients with retinitis pigmentosa," Vision Res. (to be published).

Young, R. S.

Invest. Ophthalmol. Vis. Sci. Suppl. (1)

F. M. de Monasterio, S. J. Schein, and E. P. McCrane, "Staining of blue-sensitive cones of macaque retina by a fluorescent dye," Invest. Ophthalmol. Vis. Sci. Suppl. 20, 151 (1981).

J. Opt. Soc. Am. (1)

Phil. Trans. R. Soc. London Ser. B (1)

J. D. Mollon and P. G. Polden, "An anomaly in the response of the eye to light of short wavelengths," Phil. Trans. R. Soc. London Ser. B 278, 207–240 (1977).

Vision Res. (2)

R. D. Watkins, "Foveal increment thresholds in protan observers," Vision Res. 9, 1197–1204 (1969).

E. N. Pugh and J. D. Mollon, "A theory of the pi 1 and pi 3 color mechanisms of Stiles," Vision Res. 19, 293–312 (1979).

Other (2)

R. Young and G. Fishman, "Sensitivity losses in a long wavelength sensitive mechanism of patients with retinitis pigmentosa," Vision Res. (to be published).

G. Wyszecki and W. S. Stiles, Color Science: Concepts and Methods, Quantitative Data and Formulas (Wiley, New York, 1967).

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