I saw sunglasses of different colors in the shop. What's the difference?

Introduction: In summer, the atmosphere is gradually rising, and the sun is more dazzling. Originally, many people began to buy sunglasses, especially for people who ride bicycles or drive cars. Those who go out for travel or vacation will also wear sunglasses, which can protect their eyes from direct sunlight and prevent ultraviolet rays from being irradiated. There are many kinds of sunglasses. Let's take a look at them with Xiaobian. What's the difference between seeing sunglasses of different colors in the shop?

First, meet the demand

At present, the first recognized method of eye protection is to wear appropriate sunglasses. The lenses of sunglasses are very particular. The American Optometry Association recommends choosing sunglasses with a visible light transmittance of 1-25%. Light-colored sunglasses are suitable for cloudy weather and have weak shading ability. The lower the visible light transmittance, the higher the lens grade, and the better the ultraviolet protection. The second kind of sunshade mirrors are generally suitable for sunny days with average shading ability, and the third kind of sunshade mirrors are suitable for hot sun with strong shading ability.

II. Logo

In order to better avoid ultraviolet radiation, American Association suggests choosing glasses that can block 99~1% ultraviolet radiation. In actual purchase, different material logos can meet this requirement. When purchasing sunglasses, be sure to observe the packaging label and details page. Glasses materials are provided. Every face has suitable sunglasses, and the central idea of choosing sunglasses is to weaken the shortcomings of the face? Let the square face be softer and the round face have a three-dimensional effect.

Third, the color

The color of sunglasses is also very particular, and different colors have different needs and preferences. Gray is versatile, suitable for almost all scenes, which can reduce the brightness and vertigo effect of light. Green is also a universal color with good color perception, which can improve contrast and visual clarity, while brown can increase contrast and sensitivity, which is more suitable for outing activities such as fishing and golf. People who have more outdoor activities and drive are not recommended to wear green, blue and purple lenses, so they can't see the traffic lights clearly.