1. sunglasses: it is a kind of visual health care products to prevent the strong stimulation of sunlight from causing harm to human eyes. With the improvement of people's material and cultural level, sunglasses can also be used as special ornaments for beauty or personal style.
2. sunglasses function: optical correction- Sunglasses rarely have this function, but now there are diopter sunglasses, or invisible wearers to reduce the evaporation of invisible water, Maintain invisible optical protection-mainly to prevent eyes from being burned by strong sunlight, and not by ultraviolet rays, provided the sunglasses have this function. Decorative effect-many people choose sunglasses first from color and style, is the ideal decoration for many women in summer, even indoor people wear to block the sun-cycling, drivers, outdoor workers, fishing, outdoor sports, ice and snow sports, all need to block the sun through sunglasses, improve visual clarity.
