As different electromagnetic have different waves, people can sense various colors, aim at developing a unique contact lenses, we utilize Spectral Theory to make one to one special luminous marked playing cards contact lenses.
This special ultimate one to one contact lens can not be tested by infrared light or ultraviolet camera or any other test devices, and the corresponding marked poker cards are marked with special invisible ink recipe, and they are invisible under the IR/UV contact lenses. One to one ultra contact lenses can make only you can see the luminous ink marks on the marked-cards, all the players around you can not see the marks even if they wear the luminous infrared marked cards contact lenses or ultraviolet poker cheating contact lenses.
This one to one luminous magic marked cards contact lens is very safe and soft to wear, do you like it?