With traditional lenses such as bifocals and progressives, small portions of each lens offer different types of vision correction. You adjust them and dial them in just the way you need them When you need to see clearly in any situation you need Instant 20 20.

The Centre for Vision in the Developing World has engineered and distributed over 60,000 pairs of self-adjusting glasses to developing countries to improve quality of life. Even the name "self-adjusting" is false and misleading suggesting all you do is wear them and they adjust all by themselves -- yeah right -- you can turn those little knobs all day long and they won't focus.TO +3 DIPTEROUS RANGE dynamic power optic lenses for nearsighted and myopic as well as farsightedness. Our broad range of Adjustable Safety Glasses includes protective eyewear that comes with special adjustable features – most often on their arms – that ensure a secure fit for most people without having to worry about sizing prior to purchase. Intraocular lens "CrystaLens" replaces the normal eye lens with an adjustable one that is adjusted by using the eye's focusing muscles to focus. Adjustable focus glasses feature fluid-filled lens technology that lets you adjust the lens power based on your vision needs.

If you spend long hours in front of a computer screen or have a job that requires a lot of reading, you might want to consider adjustable focus glasses. It’s suggested you could swap them for contact lenses if you were waiting for surgery, but I’m not sure I’d want to wear them for weeks. You may need the specs to read the instructions as it’s not intuitive, so best to work out how to use them before you need them. These nifty glasses, as the name suggests, allow you to actually adjust the focus, so you can read a book or look off into the distance with equal clarity. Safety Goggles by Specification Safety Goggles Frame Strength Safety Goggles Style Safety Goggles Light Transmission Safety Goggles Optical Quality Safety Goggles Lens Properties Safety Goggles EN 166 Safety Goggles EN 169 Safety Goggles EN 170 Safety Goggles EN 172 More.

Named adjustable not because you can change the fit but instead you can change the actual lens to suit a wide range of prescriptions.