Effect of mount location on the quantification of light intensity in myopia study

PurposeTo investigate how the mounting location of wearable devices affects the measurement of light intensity.MethodsTwo commercially available wearable devices, HOBO and Clouclip, were used to compare the effects of different mount locations on light intensity measurement. We assessed the consiste...

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Bibliographic Details
Published in:BMJ open ophthalmology 2023-12, Vol.8 (1), p.e001409
Main Authors: Wen, Longbo, Liu, Hong, Chen, Zhao, Xu, Qinglin, Hu, Ziqi, Lan, Weizhong, Yang, Zhikuan
Format: Article
Language:English
Subjects:
Data collection
Epidemiology
Humans
Light
Myopia - diagnosis
Optics and Refraction
Outdoor activities
Outdoors
Paediatric Ophthalmology
Refraction, Ocular
Sensors
Variance analysis
Vision
Wrist
Wrist Joint
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Summary:PurposeTo investigate how the mounting location of wearable devices affects the measurement of light intensity.MethodsTwo commercially available wearable devices, HOBO and Clouclip, were used to compare the effects of different mount locations on light intensity measurement. We assessed the consistency of the measurements of the two devices by placing a HOBO and a Clouclip simultaneously in 26 different light environments and measuring the light intensity. To simulate the real-life usage scenarios of the two devices, we had 29 participants wear two HOBOs—one on the wrist and the other on the chest—along with a Clouclip on their spectacles for 1 day; meanwhile, the light intensity was measured and analysed.ResultsWhen under the same light environments, the light intensity measured by the Clouclip was 1.09 times higher than that by the HOBO, with an additional 82.62 units (r2=1.00, p
ISSN:2397-3269
2397-3269
DOI:10.1136/bmjophth-2023-001409