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, ...
How to wear the right glasses correctly
Correct vision and protect the eyes: for people with refractive errors (such as myopia, farsightedness, astigmatism), long-term wear of the appropriate degre...
Optical property
Anti-ultraviolet ability: the eyes are exposed to sunlight for a long time during exercise, and ultraviolet rays are more harmful to the eyes. The UV400 logo of the sunglasses mean...
Frame width
Too wide: If the frame width is too large, the glasses are easy to slide on the face, especially in some light exercise or facial sweat, this situation will be more obvious. At the same...
The material of children’s glasses has an impact on the replacement frequency. Different frame and lens materials vary in terms of durability, adaptability, etc., as follows:
Frame material
P...
glasses design
The entire eyeglass frame needs to be designed before going into production. Glasses are not so much an industrial product. In fact, they are more similar to a personalized handicraf...
