Abstract
A new-generation infrared-television pupillometer is described and related issues are discussed. In order to obtain a back-lit image of the pupil of the eye, and infrared-LED illuminator that outputs a squeezed beam and a recent CCD camera having enhanced sensitivity in the near-infrared region were incorporated. The infrared-ray exposure to the eye by this method was determined to be quite low and hence a prolonged reconding could be made with safety. The bright-pupil image gives a definite pupil/iris boundary so that more accurate tracing of pupillary movement becomes feasible. In particular, intrinsic responses of the pupil in dim and dark adapted conditions can be measured stably and precisely. Simple, carefully designed, and inexpensive hardware implementation using a microcomputer, as well as a necessary control program for autonomous data acquisition, is presented in detail.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
