Sunglasses are more than just a fashion accessory; they're a practical tool to protect your eyes from harmful UV rays and reduce glare. But not all sunglasses are created equal. One key difference lies in their lenses: polarized and non-polarized.

Trudren Optics has grown into a global, value-added innovator and manufacturer of high quality optical frames, reading glasses, anti blue light glasses, designer sunglasses and related accessories.

Non-prescription glasses, also known as "plano glasses", "unprescribed glasses", or "fashion glasses non-prescription", have gained immense popularity over the years. These glasses, designed with style and function in mind, do not correct vision but are often equipped with protective features such as blue-light blocking technology to reduce digital eye strain.

One of the questions we are asked from time to time is what do sunglass lens categories mean. The category number equates to a percentage of the VLT (Visible Light Transmission) that is, how much light the lens lets through. The higher the VLT the lighter the lens, conversely the lower the VLT the darker the tint will be, blocking more light coming through to the eye.

Sunglasses protect your eyes from harmful ultraviolet (UV) rays, reduce eyestrain in bright conditions and protect you from flying debris and other hazards. Finding the right pair is key to your comfort, whether you're driving to work or climbing a mountain.

Maybe your mom nagged you to wear sunglasses as a kid, or your dad always had an extra pair around to make you wear on bike rides, but have you ever wondered: Why do I actually need to wear sunglasses?

Over the years, countless customers create unique eyewear products through our customized service.

China has the largest number of eyewear manufacturers and the most complete eyewear products in the world. There are about 6,000 eyewear manufacturers in China.