Invisible bifocal lenses are high-tech eyewear lenses that can simultaneously correct both hyperopia and myopia. The design of this type of lens not only takes into account the problems that ordinary glasses can correct, but also considers the visual problems that exist in special groups. In this article, we will provide a detailed introduction to the functions and advantages of intangible bifocal lenses.
Features: There are two focal points on one pair of lenses, that is, on one ordinary lens
Overlay a small lens with different luminosity on the lens:
Used alternately for patients with presbyopia to see far and close:
Above is the viewing distance (sometimes flat light), and below is the viewing distance
Reading time:
The far degree is called the up light, and the near degree is called the down light
The lower luminosity difference is ADD (external luminosity);
Divided into linear double light, flat top double light, and circular according to the shape of the small piece
Top double light, etc.
Advantages: This eliminates the need for patients with presbyopia to change their glasses when looking closer and farther.
Disadvantages: There is a jumping phenomenon when switching between looking far and looking close;
There is a significant difference in appearance from regular lenses.
According to the form of the lower light part of the bifocal lens, it can be divided into:Flat-Top、Round Top and Invisible.
Compared to Flat-Top and Round-Top, Invisible Lens has the advantage of not being able to clearly distinguish the boundary between myopia and presbyopia from the appearance, and is very similar to regular single lens lenses. When looking at objects, there is no obvious sense of obstruction, making wearing more comfortable.
This is our semi-finished photogrey invisible lens, which can also have anti blue light and color changing effects.
Is there no clear boundary, right?
After being illuminated by a color changing light, it appears gray.
If you are interested in this product, please contact us.Choose invisible lenses to bring you unexpected comfort experience！
Post time: Nov-17-2023