What are advantages of clip on sunglasses?

[Knob Noster]

Can you say the advantages of clip on sunglasses over prescription sunglasses

[Knobel]

"The primary advantage of clip on sunglasses is the inexpensive price compared to prescription sunglasses.The magnetic clip-ons can be attached directly to the rim of the existing prescription glasses. They are hardly slipped off and are convenient to put on. You can also take up or down the clip-ons whenever you want. So they are very handy for the sportsman or anyone in an area where the intensity of light fluctuates. "

[Knoke]

"Compared with prescription sunglasses, clip on sunglasses are less expensive.clip on sunglasses are especially suitable for those people who move frequently between indoors and outdoors. According to your needs, you can flip them up or down and don't have to take them off. So it is more convenient than prescription sunglasses."