The scientific name of PC lenses is polycarbonate, which is an ultra light and highly impact resistant plastic lens. Its most prominent advantage is its inherent 100% UV400 protection ability, which can effectively block UVA and UVB ultraviolet rays without the need for additional coating, avoiding UV damage to the eyes. It will not lose its UV protection effect when the coating falls off like inferior coated lenses.

The biggest advantage of PC lenses is very clear: firstly, they have extremely strong impact resistance, reaching the level of bulletproof glue, and are not easily broken by impact, falling, or hitting, making them one of the safest lens materials currently available; Secondly, it is ultra lightweight and portable, much lighter than glass, and even lighter than ordinary resin lenses. Wearing it for a long time will not cause a sense of pressure on the nose, which can effectively reduce wearing fatigue; Thirdly, it has good stability, is not easily deformed, and has better high-temperature resistance than TAC lenses. Even if it is exposed to sunlight in the car in summer, it is not easy to bend or deform, making it suitable for various daily scenarios; Fourthly, it is suitable for a wide range of people, especially children, sports enthusiasts, and drivers.

At the same time, PC lenses also have obvious disadvantages: firstly, the surface is soft, the wear resistance is poor, and it is easy to scratch. Therefore, when purchasing, it is necessary to choose a style with hard coating, otherwise the lens is prone to losing luster and affecting the visual effect; Secondly, the optical clarity is not as good as that of resin, nylon, and glass lenses. Due to their lower Abbe number, slight dispersion may occur in strong light environments; Thirdly, some low-priced PC lenses may have internal stress issues, and wearing them for a long time may cause eye fatigue, so extra attention should be paid when purchasing.
From the perspective of the target audience, PC lenses are most suitable for people who value safety and pursue lightness, including children's sunglasses (PC material is preferred, safety comes first, and can protect children's delicate eyes to the greatest extent possible), sports goggles, cycling and outdoor enthusiasts, as well as people who often drive or commute. Its drop resistant and lightweight characteristics can be well adapted to these scenarios.
In terms of material selection, the following principles can be followed: for the safest and most suitable for children or sports scenes, PC is preferred; for high-definition and comfortable wearing, resin or nylon can be selected; For good polarization effect and affordable price, TAC can be selected; To achieve durability and high definition, glass is optional.
Important reminder: Be sure to choose products labeled with "UV400" or "100% UV protection" to ensure effective UV protection; PC lenses must have a hard coating, otherwise they are prone to scratching; Although polarized PC lenses exist, their price is higher than TAC polarized lenses, but they have stronger durability and can be chosen according to one's own budget and needs.