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.
Ways to improve driving at night
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Check your eyesight and glasses regularly to ensure that your eyesight and the glasses you wear are in the best condition.
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Clean the stains on the glasses before driving. The stains on the glasses will aggravate the glare.
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Clean the windshield before driving at night to eliminate the hidden danger of glare.
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Replace the wiper regularly.
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Keep your vehicle headlights clean and free of dirt.
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Do not drive for a long time, eat more foods that are good for eye health, and perform proper eye care.
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If you feel that your night vision is reduced, you should go to the hospital for help in time.
In fact, if your eyes are healthy and you have no vision problems that require prescription glasses to correct, then the best glasses for driving at night is to not wear glasses at all. On the other hand, if you need prescription glasses because of myopia, hyperopia, or astigmatism, choose clear corrective lenses with an anti-reflective (AR) coating. These lenses can let almost 100% of the visible light into your eyes, can allow your eyes to correctly focus on roads and other obstacles at night, can reduce or eliminate the glare from street lights and headlights. Because they are based on your personal prescription, they provide the best vision for your eyes.
Glasses with metal frames.
This is a very popular style of glasses. The feature of the glasses is that they look classic and retro, but when worn with modern clothes, they will make people feel bright.
The first feeling given by metal frames is retro, indeed, no matter what kind of metal frame is worn, there is always a kind of old retro flavor. But metal frames aren't just retro for anymore. Now, the metal glasses frame is synonymous with the avant-garde.
Does it take time to adjust to progressive lenses?
How long should it take to get used to progressive lenses? I have never worn glasses before.Progressive lenses were developed to allow easy switching between near and far views. Progressive glasses are divided into four parts. The upper part is the far-light region. The lower part is the near-light region, and the middle part is a variable light region. From top to bottom, if the hyperopia film is gradually increased and the myopia film is gradually decreased. The middle variable area is on both sides of the astigmatism area. Because of the prism effect, when you see things, through this area, the object will be blurred, and the eyes will feel uncomfortable. If the height of the frame itself is very small, the transition zone of progressive multi-focus is very narrow, and the eyes may not adapt to the sunglasses. The current design of progressive lenses is still not mature. Imported brands are relatively stable but expensive, and domestic brands are not mature in design. For various reasons, progressive glasses may be difficult to adapt to wearing.
Apart from memory metal frames, what other frames are the most durable?
Nylon plastic frames are the most durable frames available. It is hypoallergenic and flexible. But they are easier to break than metal frames, and their overall strength is reduced by sunlight and the aging process. Titanium and titanium alloy metals are used to make some of the most durable frames. Their strength can be compared with that of stainless steel, but titanium frames provide more options than stainless steel in terms of texture, pattern, and color.
How to know if lens is polarized?
Make use of LCD screens. Point the glasses horizontally at the LCD screen and then rotate them upward by 45 degrees clockwise. If it is a polarized lens, it will show a change in color deepening. If it does not change no matter how you rotate it, it is not a polarized lens. You can borrow another person's polarized lens or have previously worn a known true polarizer, and place it crossover with the new glasses you want to buy. At this time, you should see the object clearly from the crossover part with your eyes. Then cross the glasses vertically and horizontally, and at this point, the opposite object should not be visible from the intersection. If this condition is satisfied, it means that a true polarized lens is being tested.
Diamond-shaped face with irregular glasses
A diamond-shaped face is more difficult to choose frames because facial features are more distinctive. When choosing glasses, you should also choose more distinctive ones to modify your face. Irregular glasses, such as hexagonal or pentagonal glasses frames, can be selected. The fashion sense is particularly strong. It looks like a little girl's vision and has a good modification effect.
