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What is blue light? There are many types of light that we are exposed to...
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Introduction to glasses with a smooth transition Progressive lenses, also known as multifocal lenses ,...
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Introduction to using old glasses Old glasses can have more value than we might initially...
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What is myopia? Nearsightedness, also known as myopia, is a common eye condition in which...
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What are color-shifting lenses? Color-changing lenses, also known as photochromic lenses, are a special type...
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Blue light glasses are a relatively new addition to the world of optics. These specially...