What Are Yellow Lenses For? | KOALAEYE OPTICAL

What Are Yellow Lenses For?

Does it take time to get used to new prescription glasses?

People who wear new advanced glasses usually have an adjustment period. For novices, please gradually adapt to the glasses. In the first 2-3 weeks, increase the wearing time every day to adapt to the lens. For example, wear it for 1-2 hours on the first day, then add 2 hours a day until you feel comfortable. Before driving, please try it at home. Remember, you need to turn your head and move your eyes to find the 'sweet spot' for the activity you care about.

For experienced wearers, even under the same prescription, a new incremental pairing is required, and some adjustments are usually required. Progressive lens design, frame shape, and many other factors will also affect the adjustment time.


How can you tell if blue light glasses work?

It can be identified in the light. Ordinary lenses have a yellowish feeling under the reflection of light, while the anti-blue lens film color has blue on the yellow-green film, which is the cause of reflecting blue light out. Check the instruction manual to verify that the lenses contain radiation-resistant materials. When wearing, you can look at the electronic screen far away, and check if there is a sense of irritation to the eyes. The biggest difference between the regular lens and the anti-blue lens is the coating layer. If you look carefully, you can see that the anti-blue lens layer is very clear. Put the anti-blue light glasses on the fully open phone screen and observe if the covered area is blue. If it is, the prevention effect is good. This is because the blue light emitted by the phone is reflected on the phone screen by the lens.



What is a photochromic lens?

Photochromic lenses are lenses that become dark when exposed to a particular wavelength of light (usually ultraviolet light), but return to their original transmittance and become clear when no longer illuminated by the light source. Photochromic lenses can be made of glass or resin. The discoloration effect is caused by silver chloride or other halides added to the lens, which are transparent to visible light when not irradiated by ultraviolet light. When irradiated by ultraviolet light, chemical reactions will occur, which will absorb part of the visible light and make the lens show dark. The chemical reaction is reversible, so the lens returns to its original transparent state when it is no longer exposed to UV light.


How to handle rusty spectacle frame?

Skin allergies are after the rust of the spectacle frame, so we have to solve the problem of rust of the spectacle frame by physical isolation. Apply a layer of transparent nail polish on the metal surface, or add an anti-allergic sleeve on the temple of the eyeglasses so as to separate the skin from the metal by resin. Both of these methods isolate the skin from the spectacle frame, effectively preventing corrosion of the spectacle frame caused by sweat and grease.



Confirm the optometric data

It is necessary to confirm the accuracy of optometric data. If you stay up late or look at the phone or computer for too long before the optometry, leading to visual fatigue, it will increase the degree. But if you can let your eyes have a good rest, and then take optometry, the degree may be restored to the original situation, so you need to know the state of optometry, to check if it really had increased in degrees. The main purpose of progressive lens is to use it for people who have bleached eyes and often take off the lens.


Armani glasses

As a sub-brand of luxury Armani, it is a high-end eyewear brand. It is representative of exquisite quality and noble luxury, and it pays attention to details and displays noble temperament. The handmade frame, superb craft, and workmanship make the charm of the Armani spectacle frame show in front of everyone. The medical environment-friendly silicone nose pad is designed according to the structure of the human nose bridge, which not only fits the nose more but is very comfortable. The prices of the Armani frame are basically around 1500 yuan.


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Eye problems that may occur while driving.

Visual fatigue and xerophthalmia: when driving, the spirit and eyes are in a highly tense state, reducing the blink of an eye, which will easily cause eye fatigue and xerophthalmia. Flash glare -- car headlights and city light pollution -- can cause serious damage to the eyes. UV damage: UV radiation is strong when driving in the daytime, especially in the plateau and snow weather. Nocturnal myopia: nocturnal light is insufficient, so it can make the eye pupil dilate, causing nocturnal vision to drop influence driving safety.

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