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There are five options to improve our knowledge about lenses.
1. Hard Coating
95% Scratch resistant lenses
Coating thickness is precisely controlled by fully automized machine thus giving lens optimum scratch resistant property.
Anti Scratch coating is not 100% scratch proof but company offer Guarantee against lens developing minor scratches with usage.
Worldwide Coated lenses are more prefered then uncoat lenses due to its improved cosmetics look & high durability.