For the people who wear prescription glasses usually are confused when in sunny days, how they can do the UV protection for eyes? Maybe we can think is sunglasses optical lens, or photochromic lens, or with sunglasses magnet clip on, these ways do can settle the problem, but if people don't want to change their prescription glasses, and take too much cost how to wear sunglasses on the glasses?
The two convenient ways are clips and glasses sunglasses, which they can wear on or off freely, and suitable for any glasses, no need to worry about the sunglasses can't use on any glasses, they are stable and fashion enough also.
