Modiano Super Fiori Marked Playing Cards

Is it useful to use perspective marked cards in the poker game?
What's perspective marked cards?
Perspective marked cards means the infrared marked cards with invisible ink marks that may be luminous to the special contact lenses. Since we can see the luminous marks of suits and numbers of the playing cards with device, we call these cards perspective marked cards.  
Perspective marked cards as an advanced technology entertainment product, are developed with the development of science and technology.
Does anyone use perspective marked cards in the poker game?
Perspective marked cards can be used in any places, private poker room, casinos, poker club, magic shows and so on. Due to their clear effect and high concealment, perspective marked cards are very popular among poker players. It's a way for self-defenses if you wear the infrared contact lenses to see the invisible ink marked cards.