How to know if your sunglasses really protect against UV

Labeling and standards
When the sun is shining, it is important to protect your eyes with sunglasses that effectively block UV rays. Look for sunglasses that clearly state UV400 or 100% UV protection, as this ensures that both UVA and UVB rays are blocked. Check if the sunglasses meet international standards, which is often seen as a quality mark for reputable manufacturers.

Lens color and quality
Dark lenses may give the impression of high protection, but it is the relevant UV label that determines the actual protection. Sunglasses without certification, especially low-cost variants, may fail to block harmful rays. It is therefore wise to choose models from manufacturers that document their UV protection.

Comfort and clarity of vision
In addition to UV protection, comfort and proper fit are essential. Sunglasses should fit well and ensure that vision remains clear and unobstructed. A good balance between design and function is often reflected in both fit and visual acuity.

Questions and answers
• When should I choose sunglasses with UV400 labeling?
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If you want optimal protection against both UVA and UVB rays, you should choose sunglasses with UV400 marking or 100% UV protection.

• Do dark lenses always provide better UV protection?
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No, it is the UV rating, not the lens color, that determines the level of protection.

• Why are international standards important?
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They ensure that the sunglasses meet established quality criteria, which increases the chance of effective UV protection.

• How can I be sure of the comfort of the sunglasses?
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Try on the sunglasses before purchasing to ensure they fit well and do not distort your vision.