Infrared contact lenses and invisible ink marked deck
Infrared contact lenses are different from marked cards sunglasses, which are more comfortable and concealable in poker cheating.
Wearing infrared contact lenses can see through the invisible ink marked deck quickly and clearly. But there are some tips the user need to pay attention. First, washing the hands before wearing the contact lenses. Second, better wear contact lenses for one to two hours for adaption if it is the first time to wear it. Third, better put the contact lenses into the pure water rather than the care solution. Fourth, the best situation is that playing poker games under the white light, especially under the energy-saving light.
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