Multifocal lenses are lenses for seeing at 3 distances, far, medium and close. With a pair of glasses you can see everywhere.
Far distance, like a view.
Middle distance, like your office computer or cooking appliances.
Close distance, like a book.
What is the difference between the categories of multifocal lenses:
Before choosing the type of multifocal lenses, the main differences between the categories of multifocal lenses are as follows:
1. The field of view: In particular, the premium category has less peripheral distortions (lateral aberrations), thus gaining a wider field of view.
2. The transition between the 3 distances: In particular, the premium class features a smoother transition between far-medium-close distance, achieving easy and comfortable user adaptation to theyou say the distances
3. The medium viewing areas: In particular, the premium class has wider viewing areas for intermediate and near distances. 
What are the advantages of multifocal lenses:
For the manufacture of multifocal lenses, it is necessary to complete the far and near prescription.
A basic and necessary field is its completion ADD (Addition), which is adding near vision or adding power to the bottom of multifocal eyeglasses.
The addition (ADD) it is the same for both eyes and appears as a positive value, which usually ranges between +0.50 and +3.50.
Categories of multifocals:
| VARIFOCAL STANDARD |
Excellent optical performance in the far zone A few peripheral distortions Comfortable near vision |
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Widened fields of view in the far zone Less peripheral distortions Enhanced near vision Improved middle distances Comfortable switching between optical channels (near-medium-far) |
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| VARIFOCAL PREMIUM |
Premium extended fields in distance vision Minimal peripherals distortions Enhanced near field of vision Extremely efficient midrange Smooth power transition in all lens zones (near-mid-far) Higher definition and maximum performance |
Read more:
How to read / fill your prescription
Types of Lenses
Size
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