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KMID : 1159320160180030393
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Korean Journal of Vision Science
2016 Volume.18 No. 3 p.393 ~ p.401
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A Study on Dry Eye Screening Inspection Methods for Employees in a Low-humidity Environment
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Hong Kyung-Hee
Kim Se-Jin
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Abstract
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Purpose: A number of low-humidity environment employees are suffering from dry eye by environmental factors and these number are increasing. In this regard, this study aimed to identify its prevalence rates depending on the dry eye screening inspection methods and propose the standards for the methods by making a comparative analysis of them.
Methods: The study conducted a survey with 543 employees working in a clean room with environmentally sealed space (with less than 1 percent of relative humidity) for manufacturing secondary (lithium ion) batteries at the Choongnam province in Korea. McMonnies questionnaire was subjectively implemented and the test was objectively performed of their tear film stability and tear volume.
Results: In all the 4 dry eye screening inspections, 72 participants were tested positive for dry eye and 471 were tested negative. As a result of the analysis of correlations between the 72 participants and the general characteristics, it was found that dry eye had a negative relationship with the hours of sleeping. As a result of the analysis of reliability of the dry eye screening inspection methods, McMonnies test was found to have the highest conformity degree with 0.53 and
the validity obtained by making a comparative analysis of ROC curve was found to be highest with 0.90. As the result of the analysis of decision making for determining the prediction fitness model to investigate whether the patients were tested positive in all the dry eye screening inspections, the second test was made of tear volume for them after the first McMonnies test was performed.
Conclusions: It was shown that an employee in the low-humidity environment’s dry eye presence was significantly related to the employee’s sleeping hours. Therefore, there is the need for an education program to encourage them to adjust their sleeping hours to generally recommend 8 hours. As a result of the comparative analysis of dry eye screening inspection methods in this study, it is thought that adding McMonnies test, which is the most reliable and valid method, to the eye examination will help determine whether or not the employees have dry eyes.
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KEYWORD
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Low humidity environment, Dry eye, Sleeping duration, Reliability, Validity
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