Abstract

Using the scanned text technique developed by Legge and his colleagues, the present study demonstrates that visually normal subjects can read with the isolated rod visual system. The subjects were able to read text (albeit slowly) at luminances near their absolute thresholds. The peak reading rates increase with luminance at about 40 words per minute for every tenfold increase in luminance. The authors suggest that the study of scotopic reading performance in normal subjects might contribute to an understanding of reading problems in patients with bilateral central scotoma.

© 1989 Optical Society of America

Full Article  |  PDF Article
Related Articles
Fourier models and the loci of adaptation

W. L. Makous
J. Opt. Soc. Am. A 14(9) 2323-2345 (1997)

Psychophysics of reading. IV. Wavelength effects in normal and low vision

Gordon E. Legge and Gary S. Rubin
J. Opt. Soc. Am. A 3(1) 40-51 (1986)

Effect of yellow-tinted lenses on brightness

Susan A. Kelly
J. Opt. Soc. Am. A 7(10) 1905-1911 (1990)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription