Abstract
The optics of the eye cause different wavelengths of light to be differentially focused at the retina. This phenomenon is due to longitudinal chromatic aberration, a wavelength-dependent change in refractive power1. Retinal image quality may consequently vary for the different classes of cone photoreceptors, cells tuned to absorb bands of different wavelengths. For instance, it has been assumed that when the eye is focused for mid-spectral wavelengths near the peak sensitivities of long- (L) and middle- (M) wavelength-sensitive cones, short-wavelength (bluish) light is so blurred that it cannot contribute to and may even impair spatial vision2,3. These optical effects have been proposed to explain the function of the macular pigment4, which selectively absorbs short-wavelength light, and the sparsity of short-wavelength-sensitive (S) cones5. However, such explanations have ignored the effect of monochromatic wave aberrations present in real eyes. Here we show that, when these effects are taken into account, short wavelengths are not as blurred as previously thought, that the potential image quality for S cones is comparable to that for L and M cones, and that macular pigment has no significant function in improving the retinal image.
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References
Bedford, R. E. & Wyszecki, G. W. Axial chromatic aberration of the human eye. J. Opt. Soc. Am. 47, 564–565 (1957).
Boynton, R. M. Human Color Vision (Holt, Rinehart & Winston, New York, 1979).
Mollon, J. D. A taxonomy of tritanopias. Docum. Ophthalmol. Proc. Ser. 33, 87–101 (1982).
Reading, V. M. & Weale, R. A. Macular pigment and chromatic aberration. J. Opt. Soc. Am. 64, 231–234 (1974).
Mollon, J. D. “Tho’ she kneel’d in that place where they grew..”. The uses and origins of primate colour vision. J. Exp. Biol. 146, 21–38 (1989).
Marcos, S., Burns, S. A., Prieto, P. M., Navarro, R. & Baraibar, B. Investigating sources of variability of monochromatic and transverse chromatic aberrations across eyes. Vis. Res. 41, 3862–3871 (2001).
Thibos, L. N., Ye, M., Zhang, X. & Bradley, A. Spherical aberration of the reduced schematic eye with elliptical refracting surface. Optom. Vis. Sci. 74, 548–556 (1997).
Rynders, M., Lidkea, B., Chisholm, W. & Thibos, L. N. Statistical distribution of foveal transverse chromatic aberration, pupil centration, and angle psi in a population of young adult eyes. J. Opt. Soc. Am. A 12, 2348–2357 (1995).
McLellan, J. S., Marcos, S. & Burns, S. A. Age-related changes in monochromatic wave aberrations of the human eye. Invest. Ophthalmol. Vis. Sci. 42, 1390–1395 (2001).
Stockman, A., MacLeod, D. I. A. & Johnson, N. E. Spectral sensitivities of the human cones. J. Opt. Soc. Am. A 10, 2491–2521 (1993).
Porter, J., Guirao, A., Cox, I. G. & Williams, D. R. Monochromatic aberrations of the human eye in a large population. J. Opt. Soc. Am. A Opt. Image Sci. Vis. 18, 1793–1803 (2001).
Wysecki, G. & Stiles, W. S. Color Science: Concepts and Methods, Quantitative Data and Formulae (Wiley, New York, 1982).
Haegerstrom-Portnoy, G. Short-wavelength-sensitive-cone sensitivity loss with aging: a protective role for macular pigment? J. Opt. Soc. Am. A 5, 2140–2144 (1988).
Snodderly, D. M. Evidence for protection against age-related macular degeneration by carotenoids and antioxidant vitamins. Am. J. Clin. Nutr. 62 (6 Suppl.), 1448S–1461S (1995).
Landrum, J. T. & Bone, R. A. Lutein, zeaxanthin, and the macular pigment. Arch. Biochem. Biophys. 385, 28–40 (2001).
Marcos, S., Burns, S. A., Moreno-Barriuso, E. & Navarro, R. A new approach to the study of ocular chromatic aberrations. Vis. Res. 39, 4309–4323 (1999).
Winn, B., Whitaker, D., Elliot, D. B. & Phillips, N. J. Factors affecting light-adapted pupil size in normal human subjects. Invest. Ophthalmol. Vis. Sci. 35, 1132–1137 (1994).
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The authors thank D. Williams for comments on the manuscript.
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McLellan, J., Marcos, S., Prieto, P. et al. Imperfect optics may be the eye's defence against chromatic blur. Nature 417, 174–176 (2002). https://doi.org/10.1038/417174a
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DOI: https://doi.org/10.1038/417174a
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