What Are Non-Prescription Glasses?
Nowadays, many people wear glasses for a variety of reasons and not just for vision problems. In fact, many people wear non-prescription glasses as a fashion statement. This trendy accessory can make you more fashionable.
What are non-prescription glasses? It is important to note that the non-prescription glasses have no corrective power, while non-prescription reading glasses offer some level of magnification, enlarging what you see up-close.
If you don’t have a vision problem, wearing Plano glasses shouldn’t be a problem since they will neither damage your eyes nor cause structural issues. Some non-prescription specs, such as the type that blocks damaging blue light, can actually be beneficial to your eye health.
What Are the Benefits of Non-Prescription Glasses?
In this part, we will show you the benefits of non-prescription glasses and show you what you need to know before buying the non-prescription glasses.
Protection: the non-prescription glasses would provide protection for your eyes from dust, direct sunlight, and computer radiation. In addition, these glasses would have to be enhanced with special coatings.
Fashion: Wearing non-prescription glasses enables you to look more fashionable. The best part is that you can select a pair of non-prescription glasses that have the features you prefer. Besides, many frames are made from high-quality materials that make them durable. They are comfortable and lightweight, which everyone can appreciate. Non-prescription glasses are also available in a variety of sizes, shapes, colors and styles so there will always be something that matches your needs and even your personality.
Police - Glasses For Men
The Italian brand POLICE can be viewed as comprehensive development, maintaining the Enthusiasm and professionalism of the Italian people in the metal industry. Adopting a solid and flexible plate material frame, the fashionable avant-garde design is loved by the hipster. A narrow edge frame can strengthen the facial line, and the logo in the temple reveals brand position, becoming the vane in the design of numerous frames. It is followed and respected by aggressive, independent, and creative people all over the world, and has become an important brand leading the life trend in the world.
Other problems with titanium frames
For the same volume of frames, alloy frames are twice as likely to break as pure titanium frames, and for the same weight, alloy frames break more easily than pure titanium frames.Therefore, some sellers have to add a lot of copper in alloy material and impure titanium material to increase the toughness of the frame, so that the alloy frame is easy to rust, and long-term wear will be eroded because of the salt in sweat.
What frames can you choose?
According to its style, the spectacle frame can be divided into full frame, half frame, no frame, and eyebrow frame, combination frame, etc. They each have their own characteristics, but have their own loyal fans, and give users more choice. It is recommended that consumers who like broad vision and light frames choose rimless or half-frame glasses. The young and fashionable people choose the ever-changing full-frame frames. There are also people who like ornamented frames, such as print flow pattern small carving, and so on, and these details on the treatment of different styles of glasses frames have the icing on the cake.
Semi-rimless glasses are easier to clean and maintain
Semi-rimless glasses usually have only half of the glass frame. We tend to wipe our glasses in one direction, but we all know that the glasses are all wrapped up. So when some small particles appear on our glasses, these things can not be wiped out by the glasses cloth, and it is easy to scratch the lens. This is one of the drawbacks of full-frame glasses.
How long does it take to get used to progressive lenses?
Because the adjustment of each eye is different, so there will be some differences in the adaptation period. It usually takes about two weeks to get used to it. Probably many young people are familiar with this kind of lens, so they adapt to them for only a week or so and can restore the normal visual effect. If it's been two weeks and you still feel that you can't see clearly, or you have the feeling of nausea, etc., then you need to test and adjust. You need to go to the hospital to see the specific case, to find out whether it is a quality problem of the sunglasses, or there are some artificial reasons. If there is a problem, we should also replace the lenses in time, otherwise, it may lead to the problem of visual fatigue. Therefore, it is still necessary to promptly confirm the case of optometry, and then replace the appropriate glasses.
There are three processes for resin-changing lenses.
The incorporation method, known as bulk polymerization, is similar to the method of glass lens, that is, one or more photochromic dyes are directly incorporated into the polymer monomer of the substrate for bulk polymerization, and the lens formed after curing will change color. Discoloration dye is completely integrated into the resin lens substrate, so the lens made of color persistence is very good.
The uniformity of discoloration and the depth of color after discoloration are highly related to the thickness of the lens. Because the thickness of the lenses at all levels is different, there will be a color difference between the depth of discoloration and the uniformity, and the uneven phenomenon of high brightness is more obvious.
The film type is known as the coating method. It is the chromatic resin lens by coating or dipping in a layer of chromatic dye on the base of the resin lens. Because the coating covers the surface of the lens, the color uniformity is good. The coating, which is only about 0.05mm thick, does not provide enough molecules to make the lens dark enough, so the color is relatively less dark, and the discoloration lasts slightly longer.
Infiltration, known as the penetration method, is to use the principle of penetration, through the thermal diffusion method to make the color dye permeate the surface of the resin lens sheet material, with diffusion depth up to 0.15~0.20mm. The lens has a constant color change characteristic. There will be no inconsistency between the center and the surrounding color as the luminosity gets darker. The color-changing resin lens made by infiltration type has the benefits of uniform color-changing, small color difference, fast and thorough color-fading, which is the mainstream of color-changing technology at present.
