Perhaps you have heard of ultraviolet contact lenses. These special contact lenses can read marks up to 3m on playing cards They are also less visible than normal sunglasses.
There are three types UV contact lens quality. The cheapest lenses are best for black and brown eyes. They aren’t sharp enough to read marked card. However, contact lenses of the second or highest class can read clear cards and are suitable for people with different eye colors.
Contact lenses of second-class quality last between 8 and 12 months. Top-quality lenses can last up 2 years if kept in pure water.
Myopia contact lenses can also be designed for those with myopia. Pure water is better than using a solution.
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