Abstract
Although there is good histological evidence for a rim of cones extending round the margin of the human retina at the ora serrata, the function of these cones is unknown, and indeed it is not known whether they are functional at all. Four possibilities are discussed here: (i) the cones of the ora serrata may alert us to sudden movements in the far peripheral field, (ii) their signal may be used in estimating optic flow during locomotion, (iii) they may integrate light scattered within the globe of the eye or passing through the sclera, for purposes of colour constancy, or (iv) they may drive circadian rhythms. We report two experiments designed to detect psychophysical correlates of the cone rim. Under the conditions we have used, neither flicker detection nor colour naming show, near the limit of vision, a discontinuity that would correspond to the cone-rich rim.
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References
Polyak SL . The retina. Chicago: University of Chicago Press, 1941.
Schultze M . Zur Anatomie und Physiologie der Retina. Arch Mikrosc Anat 1866;2:174–286.
Greeff R . Mikroscopische Anatomie der Sehnerven und der Netzhaut. In: von Graefe A, Saemisch T, editors. Handbuch der gesamten Augenheilkunde. Berlin: Springer, 1900.
Williams RW . The human retina has a cone-enriched rim. Vis Neurosci 1991;6:403–6.
Hartridge H . The limit to peripheral vision. J Physiol (Lond) 1919;53:17.
Druault A . Note sur la situation des images rétiǹiènnes formées par les rayons très obliques sur l'axe optique. Arch d'Ophtalmol 1898;20:685–92.
Jay BS . Pupil area at different eccentricities. Vision Res 1961;1:418–24.
Donders FC . Die Grenzen des Gesichtsfeldes in Beziehung zu denen der Netzhaut. Graefes Arch Ophthalmol 1877;2:255–80.
Duke-Elder WS . Textbook of ophthalmology, vol I. London: Kimpton, 1932.
Thiel H-L . Zur topographischen und histologischen Situation der Ora serrata. Graefes Arch Ophthalmol 1955;156:590–629.
Salzmann M . The anatomy and histology of the human eyeball in the normal state. Chicago: University of Chicago Press, 1912.
Curcio CA, Sloan KR, Kalina RE, Hendrickson AE . Human photoreceptor topography. J Comp Neurol 1990;292:497–523.
Joussen F, Spitznas M . The fine structure of the human retina at the ora serrata. Graefes Arch Ophthalmol 1972;185:177–88.
Fine BS, Yanoff M . Ocular histology. New York: Harper & Row, 1972.
Diaz-Araya CM, Provis JM, Billson FA . NADPH-diaphorase histochemistry reveals cone distributions in adult human retina. Aust NZ J Ophthalmol 1993;2:171–9.
Parsons JH . An introduction to the theory of perception. Cambridge: Cambridge University Press, 1927.
Schnapf J, Nunn BJ, Meister M, Baylor DA . Visual transduction in cones of the monkey Macaca fascicularis. J Physiol (Lond) 1990;427:681–713.
Miller JL, Picones AP, Korenbrot JI . Differences in transduction between rod and cone photoreceptors: an exploration of the role of calcium homeostasis. Curr Opin Neurobiol 1994;4:488–95.
Helmholtz H . Handbuch der physiologischen Optik. 1 ed. Leipzig: Leopold Voss, 1867.
Gibson JJ . The perception of the visual world. Boston: Houghton Mifflin, 1950.
Hellpach W . Die Farbenwahrnehmung im indirecten Sehen. Philosophische Studien 1900;15:524–54.
Baird JW . The color sensitivity of the peripheral retina. Washington: Carnegie Institute, 1905.
Baird JW . Review of: Die Farbenempfindung der Netzhautperipherie bei Dunkeladaptation und konstanter subjectiver Helligkeit, by Wilhelm Peters. J Philos Psychol Sci Methods 1905;2:20–2.
Pikler J . Das Augenhüllenlicht als Mass der Farben. Z Psychol 1931;120:189–208.
Arend L, Reeves A . Simultaneous color constancy. J Opt Soc Am A 1986;3:1743–51.
Munz FW, McFarland WF . Evolutionary adaptation of fishes to the photic environment. In: Crescitelli F, editor. Handbook of sensory physiology. Berlin: Springer, 1977.
Mollon JD, Jordan G . Eine evolutionäre Interpretation des menschlichen Farbensehens. Die Farbe 1988;35/36:139–70.
Stiles WS . The directional sensitivity of the retina and the spectral sensitivities of the rods and cones. Proc R Soc Lond B 1939;127:64–105.
O'Connell DJK . The green flash. Sci Am 1960;202:112.
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This paper is dedicated to the memory of Professor H.J.A. Dartnall (1913-1998)
Supported by MRC grant 9712483
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Mollon, J., Regan, B. & Bowmaker, J. What is the function of the cone-rich rim of the retina?. Eye 12, 548–552 (1998). https://doi.org/10.1038/eye.1998.144
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DOI: https://doi.org/10.1038/eye.1998.144
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