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The persons who wear a pair of glasses or contact lens have difficulty in wearing the swimming goggles for snorkeling. The overlapped wearing of a pair of glasses and goggles is impossible and wearing the contact lens during swimming is not good for the health of eyes. A Control sight is a goggle for adjusting the deflection ratio by the user as the silicone t-oil packed is inserted into the swimming goggle.
Cheonan city, South Korea