UV protection
High-quality sunglasses protect against the sun's harmful rays. Make sure they block 99–100% of both UVA and UVB rays. Look for markings on the frame or inside of the lens that prove that the sunglasses meet international safety standards. If this information is missing, have the sunglasses tested by a professional.
Optical quality
Check the optical performance of your sunglasses by holding them up to a uniform light. There should be no distortion or unevenness, as these can affect your visual experience. Test the lens to ensure the image is clear and consistent.
Comfort and fit
A pair of sunglasses should fit snugly without putting unnecessary pressure on your nose or ears. Assess both the fit and the sturdiness of the frame by gently squeezing it to see if it can withstand shock and strain.
Questions and answers
• What does it mean that sunglasses block 99–100% of UVA and UVB rays?
- It ensures that your eyes are protected from the harmful effects of the sun's radiation.
• How can I test the optical quality?
- Hold the sunglasses up to a uniform light and observe whether the image is free of distortion.
• What are the signs of a good fit?
- The sunglasses should fit well on the nose and ears without causing discomfort, while the frame should be sturdy.
• Why is it important to have documentation of sunglasses safety standards?
- This guarantees that the sunglasses meet recognized requirements and ensure optimal protection against UV rays.