Optometry for prescription glasses
The key prerequisite for proper glasses is accurate optometry. In foreign countries, professional optometrists are generally required to be qualified to issue prescriptions for optometry. However, this is not very standardized in China. Many optometrists have only been trained for a short period of time and do not have the basic knowledge of ophthalmology. For some complex situations, they may not give a proper prescription for glasses. Therefore, optometry should choose a qualified institution. If you are adolescents, people with high myopia, people with anisometropia, etc., you may need to dilate your pupils for optometry. It is best to go to the optometry center of the hospital for optometry.
Pure titanium eyeglass frame is more and more popular among consumers. Because it has the benefits of lightweight, high hardness, corrosion resistance, anti-allergy, anti-fatigue, and so on, so it is regarded as a better choice for fashion by the more and more white-collar elite class. And with the development of titanium materials and increasingly mature processing technology. Nowadays, the market has appeared a variety of pure titanium, β titanium, memory titanium, and other titanium metal-based glasses frames, for consumers to choose from.
Glasses should not have serious color differences.
Children's eyes are not fully developed, and the eyeball is still growing slowly, at this time it is best not to wear such blue light glasses with the serious color difference. If you always see things with color differences, it will cause eye discomfort, resulting in increased myopia, but the opposite. The big color difference will cause low light transmittance, affecting child macula development. In the case of long-term distortion and discoloration, visual physiology and psychology will be affected.
Blue light glasses for children have special lenses that block some light waves, which may help protect children's growing eyes from digital eye strain. Blue light lenses sometimes have a slight yellow tint. You can buy prescription or non-prescription glasses with child-size frames and lenses that filter blue light. They don't filter out all the blue light, but they can reduce your child's exposure to blue-violet light by 80 percent or more.
Disadvantages of carbon fiber glasses frames
One disadvantage of carbon fiber materials is that they are more brittle, so spectacle frames will break after being bent to a certain extent, which is not as tough as metal. Carbon fiber materials are more complex to process, so carbon fiber spectacle frames are better than conventional spectacle frames. Also, it is much more expensive. If there are too cheap ones, you need to carefully consider its authenticity. In addition, the carbon fiber spectacle frames are difficult to repair once damaged.
At present, carbon fiber material has been used by many high-end eyewear brands, which shows that it has a very good effect on the improvement of product quality. The popularization of carbon fiber as an excellent material in daily necessities has a positive effect on the improvement of people's quality of life.
How to buy prescription glasses online?
Go to the ophthalmology department of a regular hospital first, because you need to take a photo of your optometry sheet to the seller when buying glasses online. Accurate optometry is the first step in choosing the right glasses. After getting the prescription, we can choose the frames online. Various material frames have different properties. Some are light and some are tough. In short, each has its own characteristics. I can't say which one is better. According to your own needs and face shape, choose the suitable glasses frame. Next, choose lenses. There are mainly two types, spherical lens, and aspherical lens. The aspheric lens is better. Also, confirm what specific functions are needed, such as radiation protection, UV protection, etc. Finally, the seller will look at the data on the prescription. If your eyes have high astigmatism, you need to add money. Then take the payment and wait for your new glasses. It’s unbelievable that you can buy glasses online in just a few minutes. Buying eyeglasses online is fast and convenient.
Can You Get Prescription Gamer Glasses?
Most gaming glasses are not designed to be worn on top of your prescription eyeglasses, but you still have some other options.
You can order gaming glasses with prescription lenses. Make sure the frames are optical grade so they can accommodate lenses of varying thickness.
You can also choose clip-on gaming glasses because they are easy to store and light to wear.
Order daily glasses with anti-reflective or blue-light coating because they can also protect your eyes.
Do blue light glasses actually block blue light?
Anti-blue light glasses are still popular on the market. This kind of glasses is said to be 'anti-radiation and anti-blue light', but this kind of hot-selling anti-blue glasses has many problems. At present, such anti-blue glasses mainly block or absorb blue light through special materials, but there are two misunderstandings in its blue light protection. One is that the protection is not preventable, and the other is that the color cast caused by the wrong protection makes visual fatigue aggravated. Studies have shown that our eyes are the most intolerant of blue light in the 400nm to 440nm band. Therefore, current manufacturers mainly block blue light in this band when producing anti-blue glasses. But the electronic products that we often come into contact with nowadays produce blue light between 450 nanometers and 490 nanometers, and anti-blue glasses have almost no protection in this wavelength. Generally speaking, the blocking rate of anti-blue glasses is 20% to 30%, but now the blocking rate of anti-blue glasses on the market basically reaches 80% to 90%. This high blocking rate can also easily cause a color shift. , It is easier to make the eyes tired.