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The origin of glasses: The first glasses were made in Italy at the end of the 13th century, and the first recorded lens for optical purposes was by Rogier Bacon in 1268. At the same time, however, framed magnifying lenses for reading have appeared in Europe and China. Th...

09/08/22
Why do other people’s glasses can be used for 3-5 years, and their own use is not enough for 1 year before they go bad? Same product purchased at the same time? It turns out that he has learned the basics of these glasses maintenance! Follow IVision optical to learn the most basic maintenan...

27/07/22
Sunglasses with UV protection are due to the addition of a special coating on the lenses, and inferior sunglasses not only cannot block UV rays, but also seriously reduce the transmittance of the lenses, making the pupils larger, and ultraviolet rays will be injected in ...

22/07/22
Hello, dear friends, I am your glasses textbook – IVision. Today, I would like to talk with you about the production process of glasses. Today’s glasses are of various brands and materials, and how beautiful they are. IVision will take you to understand the unknown process behind the...

04/07/22
In summer, ultraviolet rays are strong, which not only harms the skin, but also affects the health of the eyes and accelerates the aging of the eyes. Therefore, when we are going out in summer, you should wear sunglasses to block the strong light and reduce the irritation and damage to the eyes....

24/06/22