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| Evaluation of Effect of Blue-Light Filtering Spectacles on Adults' Color Perception |
| Weiwei Lu, Yan Lian, Haixiao Huang, Yang Ding, Ge Wu, Wanqing Jin |
| Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China |
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Abstract Objective: To evaluate the effect of two types of blue-light filtering spectacles on adults' color perception. Methods: This was a prospective, randomized and controlled study. One humdred and forty-four normal adults who are used to wearing spectacles were enrolled in Eye Hospital, Wenzhou Medical University from January 2017 to June 2018. The age was ranging from 20 to 39 and the spherical equivalent refraction was ranging from -6.00 D to -0.50 D. The participants were randomly divided into A group (45 participants, using the regular clear spectacles), B group (49 participants, using 15% blue-light filtering spectacles) and C group (50 participants, using 30% blue-light filtering spectacles). All participants underwent FarnsworthMunsell 100 hue and questionnaires about color perception at baseline, 1 month, 3 months and 6 months of using spectacles. The parameters of the square root of total error score (Sqrt TES), the square root of partial error score (Sqrt PES) in four hue zones (red to yellow-green, yellow-green to blue-green, blue-green to blue-violet and blue-violet to red) and the scores of three questionnaires items were compared among three groups. The data were analyzed by repeated-measures analysis of variance. Results: During six months, there were no significant differences in Sqrt TES among the three types of spectacles (F=0.82, P=0.411). No statistical difference was found in Sqrt PES of every hue box among three groups (Fred to yellow-green=0.28, P=0.758; Fyellow-green to blue-green=0.95, P=0.390; Fblue-green to blue-viole=0.62, P=0.539; Fblue-violet to red=0.43, P=0.653). There was no statistical difference in the scores of each item (difficulty in color discrimination, difficulty in clothing matching and overall satisfaction) among three groups (F=0.25, P=0.777; F=0.10, P=0.905; F=0.63, P=0.533). Conclusions: During six months, two types of blue-light filtering spectacles does not affect adults’ color perception compared with the regular clear spectacles. Blue-light filtering spectacles which could filter blue light within 30% had no effect on adults’ color perception.
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Received: 12 September 2021
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Corresponding Authors:
Wanqing Jin, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China (Email: wcyjqw@163.com)
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| [1] |
. [J]. Chinese Journal of Optometry Ophthalmology and Visual science, 2023, 25(8): 0-. |
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