OSA's Digital Library

Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 46, Iss. 8 — Aug. 1, 1956
  • pp: 649–656

Glare Discomfort and Pupil Diameter

R. G. HOPKINSON  »View Author Affiliations

JOSA, Vol. 46, Issue 8, pp. 649-656 (1956)

View Full Text Article

Acrobat PDF (1135 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



A limited study has shown that the diameter of the pupil of the eye is not related directly to the sensation of discomfort which results from a bright light source in the field of view. Other factors, especially the illumination received at the eye, govern the pupil diameter. The more concentrated the source producing the illumination at the eye, the greater the contraction of the pupil. When the eye is subjected to intolerable glare, the pupil not only contracts, but varies in diameter, dilating and contracting irregularly every few seconds.

The study indicates that the pupil diameter by itself cannot be used as an objective indicator of the degree of glare discomfort.

R. G. HOPKINSON, "Glare Discomfort and Pupil Diameter," J. Opt. Soc. Am. 46, 649-656 (1956)

Sort:  Author  |  Journal  |  Reset


  1. W. S. Stiles, D.S.I.R. Illum. Res. Tech. Paper No. 8, H.M.S.O. (London, 1929).
  2. S. G. De Groot and J. W. Gebhard, J. Opt. Soc. Am. 42, 492 (1952).
  3. P. Reeves, J. Opt. Soc. Am. 4, 35 (1920).
  4. W. S. Stiles, Proc. Roy. Soc. (London) B105, 131 (1930).
  5. Ferree, Rand, and Harris, J. Exptl. Psychol. 16, 408 (1933).
  6. R. J. Lythgoe, M.R.C. Sp. Rpt. 173. H.M.S.O. (London, 1932).
  7. M. Luckiesh and F. K. Moss, J. Opt. Soc. Am. 24, 130 (1934).
  8. R. G. Hopkinson, Quart. J. Exptl. Psychol. 2, 124 (August, 1950).
  9. P. Petherbridge and R. G. Hopkinson, Trans. Illum. Eng. Soc. (London) 15, 39 (1950).
  10. J. Fugate and G. A. Fry, Illum. Eng. (N.Y.) 1955 (to be published).
  11. H. K. Hartline and F. Ratliff, Science 120, 781 (1954).
  12. W. J. W. Ferguson (private communication, 1955).
  13. H . C. Weston (private communication, 1955).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited