Progressive Multi-Focal Lenses
What are the obvious advantages of progressive lenses?
1.Continuous vision from far to near, clear at distance, intermediate and near ranges.
2.Aesthetic appearance with no visible dividing line.
3.No image jump.
4.Comfortable wearing experience, avoiding the trouble of frequently changing glasses.
Types of Lenses
-Suitable Users for Multi-Focal Lenses:
-Presbyopic people, especially early presbyopes.
-Those dissatisfied with wearing two pairs of glasses.
-Those dissatisfied with traditional bifocal lenses.
-Juvenile myopia patients.(Focus on lenses for slowing myopia progression in teenagers.
By occupation:People with frequent vision shifts; teachers (during lectures); supervisors (during meetings); card players, etc.
Unsuitable Users for Multi-Focal Lenses:
People with cervical spondylosis or migraine;Users with frequent reversed viewing distances, such as:high-altitude workers, people who often look up or sideways at close range (dentists, electrical maintenance workers), pilots, water & electricity workers, operators of large instruments, etc.
Notes for Adaptation:
Relatively long adaptation period;Adjust vision by turning the head;Pay attention to the distribution of visual zones.
Colored Lenses
Colored lenses are resin lenses dyed after substrate production, then hardened and coated.They enhance the fashion sense of the wearer.
PC Lenses
PC lenses are optical lenses made of polycarbonate, produced as thermoplastic resin lenses, while ordinary resin lenses are thermosetting
resin lenses.
Advantages: Ultra-high impact resistance, ultra-light weight;especially suitable for half-rim and rimless frames;environmentally friendly;currently the safest lenses in the world.
Disadvantages:Relatively low surface hardness;require special grinding wheels and methods for processing.
As a professional eyewear supplier, we are specialize in acetate eyewear and metal eyewear and buffalo horn eyewear.