1. Ultraviolet rays can damage the cornea and retina. When the eye receives too much light, it naturally contracts the iris. High quality sunglasses can filter up to 97% of the light entering the eyes to avoid injury.
2. Light colored sunglasses are actually a fashion variety of sun visors. Although they block the sun less than sun visors, their basic purpose is to play a decorative role. They are favored by young people relying on rich colors and fashionable styles. In recent years, fashionable women have become more fond of such sunglasses that are suitable for matching with various clothing.
3. Special sunglasses are the enhanced version of ordinary sun visors. Their indicators are higher than those of ordinary sunglasses, and they have a greater function of blocking strong light. Generally, they have different requirements for special occasions. They are often used in outdoor sports where the sun is strong and needs a good view, such as beach, skiing, mountain climbing and golf.
