Polarized lens is lens that allows only light in a particular direction of polarization of natural light to pass through. It will darken things because of its light filter. In order to filter the hars

Color-changing lenses are becoming increasingly popular because they not only provide UV protection as sunglasses, but also can be worn on a daily basis. Most importantly, they are suitable for single

1. What is Blue light？Blue light is a part of natural visible light that is emitted by sunlight and electronic screens. Blue light is an important part of visible light. There is no separate white lig

Eye muscle testThis test evaluates the muscles that control eye movement. Your eye doctor watches as your eyes follow a moving object, such as a pen or small light. He or she looks for muscle weakness

Lens is the most important component of glasses, which determines the visual effect of glasses. When selecting lenses, the factors you need to consider include the degree of vision correction, lens ma

Lens is the most important component of glasses, which determines the visual effect of glasses. When selecting lenses, the factors you need to consider include the degree of vision correction, lens ma

What are semi-finished lenses?Semi-finished lenses are lenses that have been partially processed and require additional work to transform them into the final product. These lenses usually come in a bl