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.
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.
The categories of rimless glasses
Rimless glasses can be divided into metal rimless glasses and plastic rimless glasses according to the material. According to the metal category, they can be divided into nickel-copper alloy, memory titanium alloy rimless frames.
According to the elastic order of the frame, the softest and elastic kind is the plastic rimless glasses. The benefits are the lightest weight and the lowest price. The disadvantages are the short service life, faded look after the sun, and single appearance, which are suitable for children or teenagers in the stage of corrective treatment. The second elasticity is the memory titanium alloy rimless frame. They use aviation metal titanium as the raw material, suitable for people with sensitive skin, and have lighter quality, better durability, more styles.
Clear sunglasses with metal edges
Metal-rimmed glasses themselves come with metal highlights, showing the super texture. If paired with heavy eye makeup at this point, it will make the overall makeup look particularly complicated and not neat. The simple sense makeup effect that it presents can solve the problem of the obvious weight of metal-rimmed glasses.
Refractive index of spectacle lens
It is generally believed that the higher the refractive index, the better the spectacle lens. Such spectacle lenses are relatively thin, and of course, the price is a bit expensive. When the refractive index increases, the direction of the light entering the lens will change greatly, the focus will move to the lens, the focal length will be smaller, and the diopter will become larger. In order to keep the diopter unchanged, it is necessary to reduce the curvature of the lens, that is, to reduce the curvature of the mirror surface, so that the thickness of the lens can be reduced. This is why the larger the refractive index, the thinner the lens is. Under the same premise of other things, the larger the refractive index, the thinner the lens, the lighter and more beautiful the lens, and the higher the price, but the larger the refractive index is not the better.
How to Know If You Need Bifocal Glasses?
As you get older, you will find that is more and more difficult to read or focus on things that are really close up. This is called presbyopia and it is a common eye condition among older people.
How to know if you need bifocal glasses? If you find yourself squinting at the text that once was easy to read or your vision is blurry, you may need to see an eye doctor. In this situation, you may need bifocal glasses to correct your eyes.
If you currently wear glasses but see print more clearly when you remove them, it is a sign that you may need bifocal glasses in the future.
To know if you need bifocal glasses exactly, check your eyes by an optometrist or ophthalmologist.
Feirdio blue light goggles
It can reduce the visual fatigue and discomfort caused by surfing the Internet for a long time, playing games, and working under fluorescent lights, and has the effect of protecting and reducing glare. The low color distortion lenses are optimized to provide the perfect balance for blue light prevention and visual quality. They have blue light prevention, glare reduction, UV blocking, screen flicker prevention, electromagnetic ray blocking lens. The frames of these blue light glasses are made of TR90 material. They're twice as durable as plastic glasses. These blue-blocking glasses are made of reinforced metal hinges to ensure durability and avoid cracking.
