Generally, sunglasses frames cannot be repaired. If they are made of iron, they can be polished. If the plastic is worn, the surface smoothness is not ideal. The following is an introduction to the purchase of sunglasses:

1. The color of sunglasses is light gray, brown or light smoke, followed by green, amber and blue. Red is only used for sunbathing or snow.

2. It is best to use polarized sunglasses in the car, because it can reduce glare.

If you wear sunglasses, others can see your eyes clearly, then the color of your lenses is too light.

When the sun goes down, you'd better take off your sunglasses, otherwise, our eyesight will be affected in the weak light.

You should go to a regular optical shop and choose sunglasses with anti-ultraviolet function produced by regular manufacturers.

6. Pay attention to the lens surface when choosing.

7. People with slender faces are suitable for round-rimmed sunglasses.