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KMID : 1159320180200040553
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Korean Journal of Vision Science
2018 Volume.20 No. 4 p.553 ~ p.560
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Survey on a Disposal Method of Contact Lenses after Use
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Park Il-Nam
Kwon Min-Sun
Park Ji-Woong
Lee Ki-Seok
Jung Mi-A
Lee Hea-Jung
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Abstract
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Purpose : To investigate a disposal method of disposing contact lenses and the recognition of environmental pollution by micro plastics which may be caused by the wrong disposal method of domestic contact lens wearers.
Methods : Two hundred sixty one adults(124 males, 137 females, mean age 21.48±3.14 years) were participated in this study. They were given the questionnaire survey on contact lenses purchasing place, type of contact lenses, duration of wearing contact lenses, the disposal method of disposing contact lenses and the recognition of the occurrence of environmental pollution.
Results : It appeared that eyeglass shop(50.0%) and contact lens shop(48.3%) were the main purchasing places, and the most common type of contact lenses were disposable lenses(38.5%) and daily wearing lenses(52.5%). On the duration of wearing contact lenses they answered more than 5 years(29.3%), less than 1 year (26.0%), less than 1 year to less than 3 years (26.0%), and on wearing a contact lens during a week they did 1-2 days (32.0%), 1 week (28.0%), 5-6 days (22.4%) and 3-4 days (17.6%). It was shown “no(78.3%)” and “yes(21.7%)” to the questionnaire of whether they received information or education about a disposal method at the place where the contact lens was purchased, and “no(87.5%)” and “yes(12.5%)” to the questionnaire of whether they received information or education from schools, public institutions or public media such as the internet. As for the disposal methods, landfill waste(45.6%), recycled garbage(29.6%), and drainage(16.8%) from the sink or toilet responded in order. Although men were more educated and informed about disposal than women (t=3.63189, p<0.00001), women were more aware of environmental pollution(t=2.44269, p=0.01605).
Conclusion : In order to reduce the environmental pollution issue caused by the contact lens which does not decompose at the sewage treatment facility and become micro plastics, it is urgent to provide information about correct disposal methods after using contact lenses and to educate contact lens wearers.
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KEYWORD
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Contact lenses, Disposal method, Environmental pollution, Micro plastics
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