Why is it best to wear sunglasses when traveling in spring?

You should wear sunglasses to protect your eyes when traveling on sunny days in spring.

Sunlight is made up of many kinds of light. Visible light is called visible light, and there are invisible light in sunlight, namely ultraviolet light and infrared light. Long-term exposure and contact will damage the cornea and other tissues of the eye, resulting in a series of discomfort. Light people feel uncomfortable with their eyes, while heavy people feel burning or severe pain, fear of light, tears, and even impaired vision.

Infrared ray mainly conducts heat energy, so it is also called hotline. If infrared rays are directly injected into the eyes for a long time, it will cause retinal burns, make the lens turbid and form cataracts. If you watch the solar eclipse directly without protective glasses, sometimes your vision will drop or even go blind, which is mainly due to the damage of infrared rays. Therefore, in order to protect eyes from ultraviolet rays and infrared rays, scientists have designed for people to travel on sunny days, and it is best to wear sunglasses.

There are many kinds of sunglasses with different functions. So what color sunglasses do you choose for your trip? If there is no special need, generally choose yellow-green lenses. The lenses of this color can block all ultraviolet rays and some infrared rays without confusing the contrast of various colors outside, which has little impact on tourism. Our eyes are more receptive to this color, and wearing it for a long time will not cause visual fatigue.