Ｇlasses

Our advantage products is Acetate glasses, Metal glasses, Titantium glasses, horn glasses and Other material eyeframes .

Ultraviolet rays can damage the cornea and retina, and high-quality sunglasses can completely eliminate the exposure of ultraviolet rays.
When the eyes receive too much light, they naturally contract the iris. Once the iris contracts to its maximum state, people then need to squint their eyes. If there is still too much light, such as sunlight reflected from snow, it will cause damage to the retina. High quality sunglasses can filter out up to 97% of incoming light to avoid injury.
Some surfaces, such as water surfaces, can reflect a large amount of light, and the bright spots generated in this way can disturb the line of sight or hide objects. High quality sunglasses can completely eliminate such glare using polarization technology, which will be introduced later.
Light of certain frequencies can blur the line of sight, while light of other frequencies can enhance contrast. Choose the right color for sunglasses to achieve better results in specific environments.
If sunglasses do not provide UV protection, they will expose people more to UV radiation. Cheap sunglasses filter out some of the light, causing the iris to open up to receive more light. This will also allow more ultraviolet rays to enter, increasing the damage caused by ultraviolet rays to the retina.
Therefore, there are indeed differences between various sunglasses. Choosing suitable and high-quality sunglasses for specific usage environments will provide maximum protection for users.
According to international standards, sunglasses are classified as personal eye protection products. The main function of sunglasses is to block out glaring sunlight. However, international standards further divide sunglasses into "fashion glasses" and "general-purpose glasses". The quality requirements for "fashion mirrors" in the standard are relatively low. Because the "fashion mirror" mainly emphasizes style, the wearer focuses on decoration rather than protective function. The quality requirements for general-purpose lenses in the standard are relatively strict, including requirements for UV protection, refractive power, and prism power indicators.