Factors Related to Visual Fatigue among Shift Workers in Automotive and Electronic Component Factory in Pathum Thani Province

Abstract

Objective: The study aimed to examine the shift workers’ visual fatigue and factors associated with visual fatigue among shift workers in automotive and electronic component manufacturing in Pathum Thani Province. Methods: This cross-sectional descriptive study. The sample consisted of 119 shift workers. The data was collected using questionnaires and critical flicker frequency (CFF). Data were analyzed by using frequency, percentage, mean, standard deviation, Chi-square, and Fisher’s exact test. Results: The results found that most of the sample group was male with an average age of 32.3 years. Most of the sample group drank caffeinated beverages, slept less than or equal to 7 hours/day, had an average work experience of 6 years, worked the morning shift from 07.20 am to 4.20 pm, and took an average of 4 breaks during work. It was also found that 45 shift workers were visual fatigue from work (37.8%). The results of the study on factors related to visual fatigue of shift workers found that age (p-value < 0.001), caffeine consumption (p-value = 0.047), hours of sleep (p-value = 0.030), work experience (p-value = 0.021), shift work (p-value < 0.001), and the number of breaks during work (p-value < 0.001), were significantly related to visual fatigue of shift workers (p-value < 0.05). Conclusion: Relevant agencies should identify strategies to prevent visual fatigue among shift workers by providing adequate rest periods during work, training on health care, and encouraging employees to have sufficient rest after work.