How to choose sunglasses? Please recommend.

When purchasing sunglasses, you should consider convenience such as UV filtering index, wearing comfort, and lens material. We recommend sunglasses from Tyrannosaurus and Pasha.

Ideal sunglasses must meet the following conditions:

1. Filter out at least 96% of ultraviolet rays;

2. The left and right lenses have an even color, and The difference cannot be more than 5%;

3. The scenery must not be distorted through the lens;

4. It is light and comfortable to wear, and the eyelashes should not touch the lens and will not be easily broken.

If you buy polarized sunglasses, please go to your car first and check whether the coating or film on the front windshield conflicts with the polarized sunglasses. If there is a conflict, rainbow colors will appear in front of your eyes. It is generally recommended to choose "brown" or "black-gray" lenses. These lenses will only reduce the brightness, but will not change the eye's recognition of colors.

Excellent chemical resistance, suitable for plate frames, ultra-light weight, not easy to splinter (no frame holes). With good optical performance, 100% UV protection and rich colors, it is the best lens currently on the market. Most of Tyrannosaurus' sunglasses currently have nylon lenses.

Sunglasses also have a lifespan. Generally, they need to be replaced every 1 to 2 years because the coating will wear out. Although care and use can extend the service life, as long as one negligence occurs, the coating will be damaged.

Many international big-name sunglasses are specially designed for Caucasians. Asians may have problems such as "lenses on eyelashes" or "frames pressing on cheekbones", so it is recommended to go to a physical store to try them on. Wear experience.

In addition, there are some prescription sunglasses on the market for sale. However, because indicators such as interpupillary distance vary from person to person, it is best not to choose such prescription sunglasses without the guidance of a professional doctor. .