Official Optica Blog — glasses
What are Progressive Lenses and how do they work?
What are Progressive Lenses? Progressive lenses are a type of lens that provide multiple focal points for clear vision at different distances. Unlike traditional bifocal lenses, which have a visible line separating distance and reading correction, progressive lenses have a gradual change in lens power from the top of the...
- Tags: glasses, guide, progressive
What are Photochromic Lenses and how do they work?
So, what are photochromic lenses? Photochromic lenses, also known as photochromatic lenses, are a type of glasses lens that change colour depending on the amount of UV light they are exposed to. In bright sunlight, these lenses will darken to protect your eyes, but when you go inside or the...
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What are Night Driving Glasses and how do they work?
So, what are Night Driving Glasses? Night driving glasses are a special type of eyewear that help make driving at night easier and safer. They work by reducing the glare from bright lights like streetlights and oncoming car headlights. The lenses are usually yellow or amber and are tinted to...
- Tags: glasses, guide, night driving
