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Lens Categories and Descriptions

Description of Filter Categories and Assigned Symbols

Filter category  Description Usage Additional required information 
0 Light tint sunglasses or fashion spectacles  Very limited reduction of sunglare Some UV protection 
1 Limited protection against sunglare Some UV protection  "Not suitable for driving in twilight or at night" or "not suitable for driving at night or under dull light conditions"
2 General purpose sunglasses  Good protection against sunglare Good UV protection
3 High protection against sunglare Good UV protection
4 Very dark special purpose sunglasses— very high sunglare reduction Very high protection against extreme sunglare. e.g. at sea. over snowfields. on high mountains, or in desert
Good UV protection

Not suitable for road use and driving