Should I wear driving glasses at night?
In fact, it is not safe to use any colored lenses while driving. You might consider how much color plays in your average driving experience. Red, yellow, green, orange traffic signs, and other vital signs are designed to remind you to pay attention to safety signals and directions while driving. However, if you see everything turn yellow, you may miss a sign and end up making the wrong decision at the traffic light, or worse, an accident.
Another disadvantage is that they do not have a prescription. If you are looking for a pair of standard night driving glasses on the market, you will find that most of them are standard over-the-counter glasses. To have night-driving glasses that can correct vision, you must customize them in an optical shop, and the price is much higher. Under the hype of the night vision feature, you can expect the cost of prescription night driving glasses to be too high. You can find more information about how prescription glasses work on our blog!
Color process of Contact lenses
Pigment printing process
It refers to the direct printing of pigments or patterns on the inside of the lens and then drying, which is the main production process of poor-quality chromatic contact lenses. Usually, small factories and small workshops use this method. The lens is being phased out because the pigment can easily seep out from the surface during wearing, causing discoloration and staining, and irritation to the eyes, which is a big risk.
Pigment build-in process
To be specific, the lens made by sandwich technology is a three-layer structure, the front and rear are colorless transparent layers, and the middle is a colored layer. After the processing of sandwich technology, the color layer is wrapped in the middle of the front and rear transparent layer, so that the pigment will not contact the eyes, which will not cause irritation and injury to the eyes. The downside of this process, however, is that the lenses are slightly thicker than normal contact lenses and are less oxygen-permeable, so they are not suitable for long-term wear.
The pressed film manufacturing process
This is a relatively new method of a similar sandwich process, and the color (pattern) is also made between the front and rear layers of the lens. But the color (pattern) is used to fill in the film process. During lens curing, the pigment seeps into the material instead of sticking to the surface. It feels as if the lens is covered in color within a single layer. This reduces the middle layer and makes the lens thinner, which naturally makes it more comfortable and permeable to oxygen.
The characteristics are different.
Cellulose acetate materials have high wear resistance, and hardness and texture are very good. The sunglasses are made of acetate fiber plate with plate cutting and processing. The main materials are plate and plate plus steel sheets. The characteristics of the plate are that they are not heavy. It has a hardness, good gloss, and steel combined to strengthen the firm performance. And they have a beautiful style, not easy to deform and change color, durable. The plated one deduces fashion, easy-to-match clothes, and integrates the thickness of the plate and the texture of the metal, reflecting the personality style.
The chemical name of the CP material is propionic acid fiber, cellulose molecules for the hydroxyl propionic acid in the polymer. It has good weather resistance and low-temperature resistance. The current market of this material is mainly used in glasses, toys, and a variety of shells. It is one of the acrylic resin derivatives. The material is a large sheet and can be dyed in a variety of colors.
Why My New Glasses Give Me a Headache?
The new glasses make me dizzy or headaches. You may have these symptoms when getting a new pair of glasses. Why do the new glasses give me a headache? When getting used to the new glasses, your eyes and brain have to work harder to see clearly through your new lenses. The more your strain to see, the more likely you are to get a headache.
So, how long to adjust the new glasses? It may take a few days. If you still feel uncomfortable after wearing the new glasses for a few weeks, you should ask for the eye doctor or the optician to check whether your glasses are made correctly and check whether your prescription is correct.
In addition, if you want to get a new pair of glasses, you can try Koalaeye Optil, which is an online optical store and helps you to prescribe your eyeglasses with great convenience. Koalaeye Optical provides various glasses, including progressive glasses, blue light blocking glasses, sunglasses, driving glasses, and different shape frames.
What Is Blue Light Glasses?
Blue light glasses are designed to absorb excess blue light from the many kinds of digital screens in our home and the office spaces. Blue light glasses is becoming more and more popular because it can protect the eyes from the invisible but harmful blue light projected by digital screens. With them, you can enjoy a life with less eye strain and a healthier sleep cycle.
With so many advantages, you may ask whether I can wear blue light glasses all the time. The following part shows some information.
The material of spectacle lens
It is not only based on the refractive index to select but also depends on the material of the spectacle lens. Then there are several types of materials for myopia glasses. For example, there are glass, resin, and better PC lenses. There are also obvious differences between the three materials. The use rate of glass lenses is not high now. The myopia lenses that you often see are mainly resin lenses. These resin lenses are more suitable for wearing. Also, you can choose PC lenses. There are many PC lenses on the market. This kind of lens is very light, high toughness, and not easy to break, so it is also very popular with everyone. These three materials have their own advantages and disadvantages, so decide which one to buy according to your needs.
You can choose driving goggles.
The goggles partly filter the far-light from the car. Products sold online include glasses with yellow lenses and yellow translucent shades that clip onto car shades. Shades block out oncoming far-light, while glasses prevent rearview mirror glare from vehicles behind. Most of the light emitted by car headlights is short-wavelength ultraviolet and blue light. The yellow polyester blocks them while allowing the longer wavelengths of red and green light to pass through, making the headlights softer when seen through the goggles without reducing the brightness of the road and the surrounding environment.
