Sunglasses should be replaced at least every two years, scientists have warned.
Rays from the sun damage lenses over time – meaning they gradually let more UV light through and provide less protection.
Without adequate UV filters, the eye is exposed – and the damage can cause long-term, irreversible harm to vision.
Brazilian researchers have now called for standards that test the quality of sunglasses to be revised, so that safe limits for the filters can be established.
They say a new test would guarantee sunglasses were safe to wear for a period of two years.
Exposure to sunlight varies across the world, but tropical countries have the highest amounts as UV levels are extremely high in summer and remain high in the colder seasons.
Therefore, sunglasses worn in the southern hemisphere may need replacing more often than in those worn in the northern half.
Lenses may also break more easily a result of consistent exposure to sunlight, experts say.
And wearing sunglasses which don’t offer proper protection can cause oedema – distorted vision from a swollen eyw which can leave you blind.
My little contribution, not everyone is a fashionista, but staying up-to-date and looking modern is important not only for your social life and personal image, but also in your career and life goals. Let’s update our glasses.lol
Hmmmm, what about those who don’t use sunglasses at all? I believe this is a sponsored post .