Study Enrollment

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Clinical Trial

Measuring Time-Dependent Pupillary Light Reflex Variables

The primary objective of this study is to give the investigators practical experience using hand-held pupillometry (which is the measurement of pupil size) and to help them become proficient in its use and to gather data on the optimal times for dark adaptation when using the device. Participants will be people between the ages of 18-60 who do not have eye disease. The recruitment target is up to 50 patients. The study involves one visit lasting around 1.5 hours. The procedures involve the participant being seated in a darkened room for ten minutes for dark adaptation for 10, 20, and 30 minutes before the pupillometry procedure.

Eligibility Criteria

  • INCLUSION: 1) Between 18 and 60 years old. 2) Free from eye disease. EXCLUSION: 1) Eye disease. 2) Unwilling to be tested without false eyelashes. 3) Self-reported use of non-prescribed illicit substances (4) Use of medications that have strong effects on the eye function being measured.

Contact Information

    Laryssa L McCloud

    (706) 721-7968