In discussing what material is good for the frame, and whether only the frame can be replaced after the glasses are damaged, we first need to understand the characteristics of the frame of differen...
Glass lenses: Ordinary glass itself has a certain UV absorption capacity, but the effect is limited. Some high-quality glass lenses will add special metal oxides or other UV absorbers, which can ef...
Wear properly and care for the condition
Breathability and corneal health: Modern contact lens materials in breathability and other aspects have been greatly improved, as long as the choice of qual...
How about the ranking of glasses?
In the discussion of “How does the optical industry rank?” When it comes to this topic, we have to go deep into multiple dimensions of the glasses indu...
In the discussion of “What is the optical refractive index of an eye lens?” When it comes to this problem, we first need to understand the physical concept of optical refractive index, ...
Material aspect
Look at the material composition: high-quality metal spectacle frames often use titanium alloy, pure titanium, etc., with light weight, high strength, corrosion resistance, anti-all...
