How to maintain sunglasses? What are the precautions for sunglasses maintenance?

Many people wear sunglasses in summer, because they can help people resist the glare of the sun. However, many people only know how to use sunglasses, but they don't know how to maintain them. So how to maintain them? What are the precautions for sunglasses maintenance? How to maintain sunglasses is the best?

1. How to maintain sunglasses

When putting on and taking off glasses, please grasp the legs of the glasses with both hands and take them off with the front face outward, and put on and take off glasses with one hand, which is likely to cause deformation and looseness.

when not in use, wrap it with a mirror-wiping cloth, put the lens upward and put it in a special bag, and be careful to prevent the lens and the frame from being scratched by hard objects.

if the mirror frame or lens is contaminated with dust, sweat, grease, cosmetics, etc., please clean it with warm water with a neutral detergent, and then blot it with a soft cloth.

it is forbidden to soak in water for a long time and place it in a fixed place to be exposed to the sun; It is forbidden to place it near current and metal for a long time.

please fold the left mirror foot when closing the mirror.

when the spectacle frame is distorted and drooped, the lens clarity will be affected when it is reused. Please go to the sales store for free adjustment.

The plate sunglasses may be slightly deformed after being used for a period of time, which is normal. You can adjust them by holding them in the sales store.

Please don't leave the photosensitive color changer in the direct light for a long time, otherwise it will shorten the service time of the color change effect. However, if the photosensitive color change gradually fails due to long-term wearing, it will not change the polarization effect. Please feel free to use it.

Precautions

It is not correct to put sunglasses on the dashboard when driving. In hot weather, if you leave sunglasses on the dashboard in the car, the sunglasses may be deformed by heat, especially the sunglasses with plate frames are hardly resistant to heat.

The sunglasses frame is not correct at the top of the head, so it is easy to break the hook. When you don't wear glasses, you should take them off carefully. When you put them away, you should fold them and put the mirror up. In order to save trouble, many people will put the glasses that have not been put in the glasses case in their bags or pockets, which will easily scratch the sunglasses lenses by the edges and corners of keys or combs, and we should not take them lightly.

2. Precautions for purchasing sunglasses

1. There are anti-ultraviolet signs

Anti-ultraviolet is the primary function of sunglasses. Some sunglasses have signs such as "1% anti-ultraviolet", "UV4" and "anti-ultraviolet" on their lenses or packages. If you wear inferior sunglasses that can't block ultraviolet rays, more ultraviolet rays will enter your eyes than when you don't wear sunglasses, which will easily lead to eye damage. After a long time, it will lead to cataracts, eye pain, corneal edema, corneal epithelial shedding and other symptoms. Regular optical shops generally have instruments to detect the anti-ultraviolet ability of sunglasses, which can detect whether your choice is correct. The glasses of street stalls and vendors often do not meet the standards, so it is best not to buy them.

2. Choose gray, brown and green lenses

The color selection of lenses should be based on the principle that the colors of the surrounding environment are not distorted, the edges of objects are clear, and traffic lights with different colors can be effectively recognized. The colors of lenses are gray, brown and green, because these colors of lenses absorb infrared rays and ultraviolet rays better.

3. Medium-depth lenses

Generally speaking, the darker the color of the lens, the stronger the shading effect, but it doesn't mean that the anti-ultraviolet ability is stronger. The anti-ultraviolet function of sunglasses is also related to factors such as the material and technology of the lens. Generally, the lenses with medium depth are better. Of course, if strong shading effect is required, the lenses with darker colors should be selected. But cyclists or drivers can't choose lenses that are too dark, otherwise it will be difficult to identify the color of traffic lights.

4, the occasion determines the choice angle

When going out for activities, you should choose different sunglasses for different occasions. For example, some sports sunglasses have special frames to protect their eyes according to different needs and can be worn comfortably and firmly, such as water skiing, skiing, mountain climbing, golf and tennis. For people who like golf and tennis, amber lenses can effectively increase the contrast and absorb blue light, which is helpful for the visual comfort in sports.

It's best to wear UV-protected goggles when swimming outdoors. Drivers and fishing enthusiasts had better choose polarized sunglasses, because polarized lenses can eliminate glare from all directions and make objects look clearer.

5. Let sunglasses add points to beauty

Generally speaking, different people will choose sunglasses according to different preferences and different uses, but the most fundamental thing is to start from the basic principle of protecting the wearer's eyes from damage. The basic functions of sunglasses should be to reduce the strong light stimulation, keep the vision clear and undistorted, prevent ultraviolet rays, recognize colors without distortion, and accurately distinguish traffic signals.

In addition, when choosing sunglasses, you should consider whether they match your eye size, face shape, eyebrows and nose. If the eyes are big, you can choose glasses with large frames, while if the eyes are small, you should choose smaller frames; A round face is suitable for wearing a thick frame, a slender face is suitable for a round frame, and a flat round face should choose a square frame with a slightly narrow top and bottom.