Retinal Oxygen Supply and Macular Pigmentation

Abstract

IN a recent letter, Dartnall and Thomson1 suggest that because blood-vessels are absent from the macular region of the human retina, this area might be expected to suffer from a relative anoxia compared to the rest of the retina. Since this is certainly not the case, they suggest that the yellow macular pigment may supply a secondary oxygen-carrying system.

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References

  1. 1

    Dartnall, H. J. A., and Thomson, L. C., Nature, 164, 876 (1949).

  2. 2

    Evans, J. N., and McFarland, R. A., Amer. J. Ophthal., 21, 968 (1938).

  3. 3

    Livingston, P. C., Lancet, ii, 67 (1944).

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TANSLEY, K. Retinal Oxygen Supply and Macular Pigmentation. Nature 165, 524 (1950) doi:10.1038/165524a0

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