How to choose the right sunglasses?

How to choose the right sunglasses?

1. The human body has an instinctive response to self-protection. When the eyes encounter strong light, the pupils will naturally become smaller, which reduces the ultraviolet energy entering the eyes.

Once you wear glasses without UV protection, your pupils will be dilated. In addition, this kind of glasses does not have the effect of isolating ultraviolet rays. At this time, the eyes are wide open. If ultraviolet rays enter, the damage to the eyes can be imagined.

2. Sunglasses can block ultraviolet rays because a special coating film is added to the lenses. Inferior sunglasses not only can not block ultraviolet rays, but also severely reduce the transmittance of the lenses, making the pupils larger, and the ultraviolet rays will be injected in large quantities. Damage to the eyes.

In addition, poor-quality lenses can also cause people to have symptoms of visual fatigue such as nausea, forgetfulness, and insomnia.

3. The color of sunglass lenses is light gray, brown or light smoky as the best color, followed by green, amber, blue, etc., and red is only used for sunbathing or on snow.

4. It is best to use polarized sunglasses in a car, because they can reduce the glare.

5. If after you put on sunglasses, others can see your eyes very clearly, then your lenses are too light.

6. When the sun goes down, it is best to remove the sunglasses, otherwise, our eyesight will be affected in places with weak light.

7. Choose sunglasses with anti-ultraviolet function.

8. Pay attention to the surface of the lens when choosing.

Choose the right sunglasses to protect your eyes.