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Text size
By turning small wheels found on the side of the frame the user is able to change the strength of the glasses.
The variable lens is based on a lens principle that consists of two lenses with a special determined form. Its corrective (cylindrical) power changes when the lenses are moved in opposite direction.
It is a simple principle, but requires a very high level of expertise for it to work properly.
The spectacle
Esthetics plays an important role. Therefore various models, designed for specific target groups will be produced on the long term. The design of the Focusspec fits 90 percent of the target group and is such that it comfortably fits around the head and on the nose.
Read the complete article, and searching for more information.
An idea and process past the time needed. Thanks to all those that worked for this solution for an important sense.
Is there, will there be a possible solution for the working poor in the United States of America ?
Thank you for the article.
Read the complete article, and searching for more information.
An idea and process past the time needed. Thanks to all those that worked for this solution for an important sense.
Is there, will there be a possible solution for the working poor in the United States of America ?
Thank you for the article.
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