UV-A and UV-B protection

Longer exposure to UV radiation increases the risk of permanent eye damage (early cataract …). Certain damage can be treated, while other can lead to permanent loss of vision. UV radiation is completely invisible and consequently more dangerous, especially on sunny days when UV index is very high. Also dangerous is altitude UV radiation (in the mountains and where there is snow, the reflection off the snow is dangerous), as the radiation increases by 10% every 1000 altitude meters.
Consequently, quality sun lenses are very important.

We recommend darkening over 75%, i.e. both-sided UV protection coating, or at least inner Opal Ultra/UV anti-reflection coating.
All additional protective coatings are permanent.

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