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Lens can be cleaned without fear of losing a contact lens case. Worry about bacterial pollution of contact lens users daily lens to be cleaned. Transparent contact lens case, however, if you lose in the cleaning process because it does not look good in the eyes a lot. Lens case that can prevent these situations in advance. The outside of the case there is a double lock is equipped with a lens cap or a small hole on one side and the other. How to use the the largest lens Shake lens case lens cleaning solution then double-lock is locked, and then wash. Without removing the sway only three possible because of the risk of loss will disappear.
Korea Polytechnic University
Siheung-si, Gyeonggi-do, South Korea
Young Hwan Cho Jong Hoon Lee Eun Bee Kim Hey Min Kwon