Which sunglasses should I never buy?

Those who only rely on their fashionable appearance when buying their sunglasses are doing their eyes a disservice. Decisive selection criteria for good sunglasses are guaranteed UV protection, the right glare protection category and high-quality workmanship.

The calculation of the respective glare protection category can be found on the inside of the temples and ranges from 0 to 4.

  • Category 0: 80 to 100 percent light transmission, very bright filter, for the evening
  • Category 1: 43 to 80 percent light transmission, light to medium filter, well suited for overcast days and the city
  • Category 2: 18 to 43 percent light transmission, dark universal filter, particularly suitable for summer, actually the perfect glare protection for our latitudes
  • Category 3: 8 to 18 percent light transmission, very dark filter, well suited for southern climes, light water surfaces, the beach and the mountains
  • Category 4: 3 to 8 percent light transmission, extremely dark filter, too dark for road traffic, suitable for high mountains and glaciers

Protect your eyes optimally

“Inexpensive” often means dark, mostly inferior glasses and hardly any UV protection. What many do not know: The tint of the lenses says nothing about the UV protection. It only reduces the light that is visible to the eye. Sunglasses should primarily protect the eyes from intense UV radiation in order to prevent long-term damage.

Unfortunately, the quality of sunglasses can only be assessed to a limited extent when buying them. The CE mark on the inside of the temple shows that the sunglasses meet the basic safety requirements of EU directives. Since there is no surveillance protection for the labeling, you should play it safe and buy your sunglasses from specialist retailers or have them checked by an optician.

However, good quality alone is not enough: the sunglasses must also optimally cover the eyes. The glasses should reach at least to the eyebrows and laterally to the edge of the face.