Abstract

A novel method is presented to rapidly measure the pointing direction of individual human cone photoreceptors using adaptive-optics (AO) retinal imaging. For a fixed entrance pupil position, the focal plane is rapidly modulated to image the guided light in various axial planes. For cones with different pointing directions, this focus diversity will cause a shift in their apparent position, allowing for their relative pointing to be determined. For four normal human subjects, retinal images were acquired, registered, and the positions of individual cones tracked throughout the dataset. Variation in cone tilt was 0.02 radians, agreeing with other objective measurements on the same subjects at the same retinal locations.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Analysis of individual cone-photoreceptor directionality using scanning laser ophthalmoscopy

Diego Rativa and Brian Vohnsen
Biomed. Opt. Express 2(6) 1423-1431 (2011)

Simultaneous measurement of foveal spectral reflectance and cone-photoreceptor directionality

Niels P. A. Zagers, Jan van de Kraats, Tos T. J. M. Berendschot, and Dirk van Norren
Appl. Opt. 41(22) 4686-4696 (2002)

Direct measurement of human-cone-photoreceptor alignment

Stephen A. Burns, Shuang Wu, Francois Delori, and Ann E. Elsner
J. Opt. Soc. Am. A 12(10) 2329-2338 (1995)

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