The principle of the anti-fog lens
Ordinary lens materials and water are wet, so water vapor is easy to fog up on the top. If this wetting relationship can be broken, the water vapor can be prevented from fogging up on the surface of the lens. The anti-fogging film is a kind of film which can prevent or avoid water mist agglutination effectively. It is divided into organic film and inorganic film. The inorganic film is mostly used for building, car window glass fogging prevention. For lens anti-fogging, the organic film is more used. The method is to wipe, spray (with an anti-fogging agent, and so on).
Disadvantages of Progressive Lenses
It takes time to adapt to the lenses. It can generate poor visual resolution (blur). There is also a geometric distortion of the field of view. Some of the problems with advanced progressive lenses occur when walking up and downstairs. Because the reading correction is at the bottom, the staircase may look like a rebound. However, this is all done to accommodate your progressive lenses, and within about two weeks the shortcomings should disappear. It takes some time to get used to progressive lenses. Changes in vision occur at the rim of the lens, leading to slight changes in peripheral vision. For some people, change is a little difficult. Because the first wear of progressive lenses may occur slight dizziness, shaky walking. One should be careful when they exercise or go Up and down the stairs. Because the sense of space changes, the distance judgment of the object, the sense of depth changes, people who first wear should not immediately drive or do strenuous exercise. When looking closely, the eyes need to turn down, they have mild discomfort in the eyes. The object becomes blurry when they look at it through a blurred area around the lens. Therefore, new wearers turn their heads more and turn their eyes less when they see things and try to use the far, near, and middle distance areas to see the object.
The MEMORY METAL 202 EYEGLASSES
Memory Metal 202 is an eyeglass frame and it is designed for children who fall over and their parents who must wear glasses. This development allows the metal to withstand a certain amount of bending and then return to its original shape. In addition to being incredibly flexible, the material is very not heavy, very thin, and very comfortable. The rectangular shape is popular with children with a sense of fashion. The choice of colors suits both boys' and girls' tastes and skin tones. Starting with a smooth pink hue, the thin nature of the metal ensures that the color keeps subtle through the soft blue selection.
Linda Multi Focus ™ Blue
Combining color and pattern, these women's reading glasses are definitely a stylish choice. The complex square frame features scratch-resistant and impact-resistant lenses with UV sun protection when worn outdoors, while a leopard print hard-shell with interior markings and a handy cleaning cloth will protect your glasses.
Jones New York J516
Glasses combine function and fashion. They are perfect for modern professionals, and the full-rim glasses are made of strong and not heavy acetate. The keyhole bridge gives off a preppy feel, proper for people with wider noses. Spring hinges maintain their original balance and adjustment to make your glasses more durable and comfortable, and bimetal rivets at the edges and increase the appearance. They are modern, mature college-style glasses.
How to Clean Glasses
To clean glasses by yourself, you need to be careful and use the correct way to avoid some damage to the glasses such as scratches, etc. So, follow the below steps to clean glasses lens.
1. Before cleaning the eyeglasses, you need to wash and dry your hands first. You can use the soap to wash your hands dry them.
2. Rinse your glasses under a gentle stream of tap water. This way will remove dust and other debris and avoid causing scratches on your lenses. But one thing you need to pay attention to. Please do not use hot water since it can destroy some eyeglasses lens coatings.
3. Use a small drop of lotion-free dishwashing liquid to each lens. You can only use lotion-free brands.
4. Then gently rub both sides of the lenses and all parts of the frame. Make sure to clean every part of the eyeglasses.
5. Rinse both sides of the lenses and the frame. Make sure to remove all traces of the soap. Otherwise, it will cause the lenses to be smeared when you dry them.
6. Shake youreyeglasses to get rid of the water on your lenses gently and inspect the glasses carefully to make sure they are clean.
7. Then dry the lenses and frame with a clean and lint-free towel. Make sure the towel is clean, or the dirt or debris on the towel will smear and scratch your glasses.
After all steps are finished, you also need to check your glasses again and check whether they are clean.
As for how to clean glasses, you can follow the above steps. But when cleaning your glasses, you should be careful enough. When cleaning your glasses, something you can’t do. In the following section, we will list some of them.
Sales points of note for color changing lens
The discoloration rate of the lens is related to the intensity of ultraviolet light. The stronger the ultraviolet light is, the faster the discoloration rate will be, while the vice versa. The degree of discoloration is related to the ambient temperature. The higher the temperature is, the color of the lens is slightly lighter. Otherwise, the color is slightly darker. With the progress of manufacturing technology, the discoloration rate, especially the fading rate of the discoloration lens has been greatly improved, and the interference of temperature on the color depth is becoming less and less. Either glass or resin lenses react only with ultraviolet light, not visible light, so in some environments, they do not darken.
