An easy-to-apply method for determining permissible exposure limit of retina to light. Issue 10 (October 2022)

• Record Type: Journal Article
• Authors: Jou, Jwo-Huei; Chen, Jing-Hsiu; Lin, Jin-Ting; Cheng, Ming-Hui
• Is Part Of: Heliyon. Volume 8:Issue 10(2022)
• Publication Date: 2022-10
• Subjects: Maximum permissible-limit -- Blue-hazard -- Lighting -- Optometry; Research -- Periodicals; Medical sciences -- Periodicals; Natural history -- Periodicals; Social sciences -- Periodicals; Earth sciences -- Periodicals; Physical sciences -- Periodicals; 507.2
• DOI: 10.1016/j.heliyon.2022.e10927
• Languages: English
• ISSNs: 2405-8440

Abstract

Abstract: Long exposure to intensive artificial light imposes threats to the retina. It is crucial to know the permissible exposure time to prevent photoretinitis. One complicated quantification method is available, which, however, also requires instrumentally measured spectrum and illuminance. We present herein an easy-to-apply formula and a ready-to-use table derived therefrom to determine the permissible exposure limit for any given desk lamp at any viewing distance. One only needs to acquire its color temperature and luminous flux labeled on the product. The method can be used to assist the general public in quickly assessing the potential hazardous status of their desk lamps, if any, and guide the field experts in designing human-eye-friendly lighting. Abstract : Maximum permissible-limit; Blue-hazard; Lighting; Optometry.