Sunglasses have deadlines for endurance: A Time to Replace

Meanwhile, the length of glasses is especially important if you're not one of those rare people who buy yourself new glasses every season

In time, even electric jars begin to glow weaker. Little wonder, then, that the sun's glasses have a time of endurance. More precisely, part of it.

Research by experts at the University of Sao-Paolo has shown that glasses over the course of time lose its ability to block ultraviolet waves.

In other words, some years old glasses will not shield your eyes from harmful sunlight as well as new glasses.

The lack of this protection from ultraviolet rays exposes our eyes to serious problems, as is the case with excessive exposure of our skin to sunlight.

Therefore, experts recommend replacing glasses every two years, more precisely, their glass if it is about the model you cannot live without.

The main reason for our loss of protection are numerous ways in which we damage glass every day, both by wearing and wearing glasses in a bag without eyelids.

Small scratches that occur with this carelessness may be invisible to the human eye, but they gradually reduce the protective efficiency of glass.