It also describes when and where sunglasses are a must and other ways to protect your eyes and vision.
Sunglasses designed to block 100% of UVA and UVB rays can help protect your eyes from UV damage.
Light or Dark Tint?
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Ultimately, the degree of darkness or thecolor or tintof your lenses is not what protects your eyes.
Rather, it is the ability of the lenses to block 100% of UVA and UVB radiation.
What Does UV400 Mean?
Here is the difference:
This shouldnt suggest that polarized lenses arent useful.
Which to Choose?
UV400 lenses can be polarized or nonpolarized.
This is because light passing through agingcorneasandlensesis scattered to a greater degree.
This scattering effect can be alleviated with sunglasses with polarized lenses.
Most intraocular lenses are designed today to absorb UV light.
As such, you should continue to wear sunglasses that offer UV400 protection.
If unsure, speak with yourophthalmologist.
Or, better yet, continue wearing UV400 lenses that can at the very least protect the untreated eye.
But arguably, the most important facet of good eye health is getting regular eye check-ups.
People at risk of severe eye disease should be seen at least annually.
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