The Effects of Photometric Flicker on Human and Their Non-Medical Detection Methods

Abstract

Photometric Flicker event, in other words, Temporal Light Modulation occurs at both visually noticeable and unnoticeable levels by human beings. In spite of this, the human brain and body experience some discomfort as a result of the direct or triggering effects of this event or the existing ailments increase. Photometric Flicker event occurs in a wide frequency band. Especially at low frequencies, due to the disease, seizure, disease progression, or headache, visual impairment may directly affect human biology negatively. The diseases most associated with the photometric Flicker event emerged as epilepsy, migraine and vertigo. In addition, unreasonable headache, poor performance in work, loss and errors of perception are frequently reported in the literature. When making lighting design, low and high risk groups should be determined in terms of both users and light sources, and projects should be made in this context. Various methods that do not require medical and / or laboratory research can be used to determine the level of exposure to the Flicker event. In this study, while examining the biological effects of Photometric Flicker, both the methods to easily determine these effects and their levels and what should be done to prevent the users from being adversely affected have been revealed.