Marked cards contact lenses refers to the special infrared contact lenses that is used for reading invisible ink marks on the back marked cards.
And these contact lenses are very easy to see through the marked cards with invisible juice marks on the back. People who get the IR contact lenses to see the luminous ink marks can easily know the numbers and suits of the marking playing cards.
Relatively, we also have other kinds of cheaper contact lenses. These marked cards contact lenses are also suitable for any color of eyes and will not change eyes’ color. With so high technology, this kind of contact lenses also has some defects. Marked cards contact lenses will have the defects of pupil’s automatically change under different lights. Customers can see the marks with contact lenses but some customers do not feel so comfortable. The marked cards contact lenses are with a very low price that if you have not so much money, you can choose these products. They also can let you see marks clearly.
