Uv protection
View the logo: It is preferred to choose sunglasses with a clear UV protection logo, such as “UV400″, which means that the sunglasses can block more than 99% of the ultrav...
Consider face shape
Round face: suitable for square or rectangular eyeglass frames, so that you can use straight lines to neutralize the roundness of the face, increase the three-dimensional sense ...
Product characteristic class
The principle and application of polarized sunglasses: mainly involves how the polarized lens filters the light in a specific direction, reduces glare, and the practica...
In modern society, glasses are not only a visual correction tool, but also a perfect combination of fashion and function. With the progress of science and technology, color-changing lenses, as a hi...
Optometric data
Accurate degree: Go to a professional eye institution or optician for optometry to obtain accurate myopia, farsightedness, astigmatism degree and axial position data. This is the ba...
There is no direct correlation between the shade of sunglasses and the effectiveness of UV protection.
The anti-ultraviolet effect of sunglasses mainly depends on the material of the lens and the a...
