There are many brands of contact lenses in the world, the most used one is Johnson and Johnson IR contact lens. Its quality is very good and the material has a very good oxygen permeability, allow oxygen into your eyes during wear, preventing your eyes from becoming dry and sore.
Johnson and Johnson infrared contact lens can be customized, it's very easy to use, you just need to wear them, and people around you will not notice it.
The colors of Johnson and Johnson infrared contact lens have many choices, no matter where you are from, you can choose a suitable color for your eyes, to ensure customers' safety. Such as black, blue, green, gray, etc.
The IR contact lenses are used to see the mark on the back of the marked cards, the mark is the same principle with the IR contact lenses, so this mark just could be seen by the equal IR camera lens.
Source: http://www.cheatincasino.com/product/INVSIBLE-INK/invisible-contact-lenses/Johnson-and-Johnson-IR-contact-lens.html
