The first time you put on progressive glasses, the center of the lens looks sharp and the floor appears flat, but any quick glance to the side smears the world into a soft streak....
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Photochromic lens are also known as “photosensitive lens”. According to the principle of reversible reaction of light color alternation, the lens can quickly darken under light and ultraviolet radiation, block strong light and absorb ultraviolet light, and show neutral absorption to visible light. Back to dark, can quickly restore colorless transparent state, ensure the lens transmittance. So the color changing lens is suitable for indoor and outdoor use at the same time, to prevent sunlight, ultraviolet light, glare on the eye damage.
The first time you put on progressive glasses, the center of the lens looks sharp and the floor appears flat, but any quick glance to the side smears the world into a soft streak....
READ MOREWho Should Wear Progressive Lenses: The Short Answer Progressive lenses belong on the face of anyone who needs three working distances in one frame and is willing to give the desi...
READ MOREA 63-year-old machinist picks up his first pair of progressive lenses. Two weeks later he comes back with a strange complaint: straight ahead, everything is crisp, but every time ...
READ MOREA woman in her late forties holds a restaurant menu at arm's length, gives up, and asks the person across the table to read it aloud. Three months later she is sitting in a fittin...
READ MOREA 52-year-old office manager reads a spreadsheet on her monitor, glances at the printed invoice in her hand, then looks across the room at a colleague walking in. Three distances,...
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