Abstract

A noninvasive eye tracking system based on infrared 3-D video-oculographic techniques is proposed for the automatic monitoring of eye position and orientation in external beam radiotherapy of ocular tumors. The presented method can be applied for the real-time estimation of lesion position and tumor–beam misalignments, allowing automatic patient setup and eye movement gated treatments. A prototypal eye tracker was developed and tested on five subjects, achieving gaze estimation errors of 0.5° and eye monitoring frequencies of 125 Hz. The proposed application can potentially improve quality and efficacy of ocular radiotherapy treatments, currently based on invasive, qualitative, and manual control procedures.

© 2012 Optical Society of America

Full Article  |  PDF Article
Related Articles
Calibrated real-time control of lesion size based on reflectance images

Maya R. Jerath, Danielle Kaisig, H. Grady Rylander, and Ashley J. Welch
Appl. Opt. 32(7) 1200-1209 (1993)

Automated detection of foveal fixation by use of retinal birefringence scanning

David G. Hunter, Saurabh N. Patel, and David L. Guyton
Appl. Opt. 38(7) 1273-1279 (1999)

Feasibility study of a system for combined light dosimetry and interstitial photodynamic treatment of massive tumors

Thomas Johansson, Marcelo Soto Thompson, Maria Stenberg, Claes af Klinteberg, Stefan Andersson-Engels, Sune Svanberg, and Katarina Svanberg
Appl. Opt. 41(7) 1462-1468 (2002)

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

Tables (3)

You do not have subscription access to this journal. Article tables 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

Equations (5)

You do not have subscription access to this journal. Equations 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