Types Of Lenses For Glasses: Picking Wisely
There is a typical misconception among humans that the main thing in glasses is the frame. Of course, a lot depends on it - your satisfaction and image, for illustration. But the quality of your eyesight is determined by spectacle lenses. It depends only on the lenses whether you see this world as beautiful as it is.
The world of optics does not standstill. It is constantly evolving, today the market can offer such comfort and superior products that 20 years ago it was difficult to even imagine. In order not to get confused by the variety of items and know exactly what is needed, you need to be aware of what spectacle lenses exist and how they differ from each other.
Different Types Of Lenses For Glasses: What To Choose
Nowadays assistants for vision are sorted according to:
- material (mineral/inorganic and polymer/organic);
- the number of optical zones;
- the possibility of correcting visual defects (stigmatic, astigmatic);
- refractive index (standard, thin, super thin, ultra-thin);
- the shape of refractive surfaces (spherical, aspherical, lenticular);
- influence on the intensity and properties of the light flux (light, colored, with spectral coatings, photochromic, polarizing).
An ordinary person, not a specialist, to choose glasses for himself, it is enough to know only some of the parameters of this list.
Progressive Glass Lenses: Best Types Of Lenses For Glasses
In the last 20 years, such forms of lenses have become widespread. Their design provides for different optical power in various parts of the lens, which allows a person to see comfortably and clearly both at close range, in the distance, and at medium distances. Such lenses open up a completely different quality of life for souls with age-related (after 40 years) changes.
You no longer need to have two or even more accessories for vision: for study and for watching TV, for illustration. In addition, the composition of the progressive lens eliminates discomfort when looking from a nearby object to one that is far away: the eyes are not strained at the same time.
When purchasing glasses with progressive lenses, you must remember that this is a qualitatively new level of lenses, and, like any complex device, you need to learn how to use them.
Such lenses can be either mineral or polymer, clear or tinted, with or without coatings, and photochromic. If you desire to find out more about chameleon lenses we write about them in a blog article on our website.