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A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision
Published on: February 11, 2014
Relationship Between Low Visual Acuity and Nonfatal Occupational Same-Level Falls in Japanese Female Employees: A
Azusa Shima1, Yuichiro Kawatsu, Miki Murakami
1From the Department of Clinical Nursing, Shiga University of Medical Science, Shiga, Japan (A.S., A.M., N.M.); Occupational Health Care Office, Heiwado Co, Ltd., Shiga, Japan (A.S., Y.K., A.M.); Murakami Eye Clinic, Fukuoka, Japan (M.M.); and Department of Environmental Epidemiology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, Fukuoka, Japan (A.S., Y.K., M.O., K.H., Y.F.).
Objective:
The incidence of work-related falls on the same level is increasing, particularly among middle-aged and older female workers. Vision is an important risk factor of falls. We investigated whether objectively measured visual acuity was associated with the incidence of falls.
Methods:
This cohort study included 7317 female employees aged 20-69 in Japanese supermarket stores. Monocular acuity measured during health checkups was classified into three levels (≥0.7, 0.3-0.7, <0.3). Incidence rate ratios of work-related falls within 1 year were estimated.
Results:
Incidence rate ratios were 1.26 (95%CI: 0.92-1.72) in the 0.3-0.7 group and 2.27 (95%CI: 1.15-4.48) in the <0.3 group.
Conclusions:
Risk of work-related fall was higher in those with low visual acuity. Vision correction may contribute to fall prevention in workplaces.

