Sunglasses buying skills
First consider quality
The primary function of polarized sunglasses is to prevent ultraviolet rays and filter polarized light. Good polarized sunglasses lenses can block more than 90% of the penetration of ultraviolet rays. You can choose polarized sunglasses with “UV400” best UV blocking logo; inferior polarized sunglasses, such as dark sunglasses, as the light entering the human eye becomes darker, the pupil of the human eye will become larger, and the ultraviolet rays entering the eye Increase, increase the damage to the eyes.
Look at the protection function of the frame
Most polarized sports sunglasses frames are designed with veneer arcs, which can effectively prevent wind and foreign objects from irritating the eyes during outdoor sports. In addition, the rigidity of the polarized lens and the flexibility of the frame material take into account whether it will cause harm to the human body.
Will there be discomfort after long-term wear
Genuine polarized sunglasses must be comfortable to wear; inferior lenses have no technology and functionality at the time of manufacturing, and the lens materials are also inferior. After wearing them, you feel discomfort, dizziness, headache, dry eyes, tingling, etc., so stop using them immediately.