According to a recent study, cheap sunglasses can damage your eyesight. Here’s what the experts say.
Many people in the world use sunglasses every day, especially because their eyes need to rest during sunny days. And not only that: these captivating devices also manage to embellish the face of any individual, thanks to a design studied down to the smallest details. It should also be remembered that intense solar radiation can damage the visual system of a human being, which is why glasses are an excellent ally.
However, you need to be very careful when purchasing one. In fact, not all devices can adequately protect the eyes. Unfortunately, there are some low cost sunglasses, which can even damage the visual system.
Cheap sunglasses damage your eyesight: here’s why
Sunglasses surprisingly have a very long history behind them, their origins date back to prehistory. According to archaeologists, some prehistoric people loved to wear a special, specially constructed ivory mask to block annoying sun rays, especially those reflected by the snow. Even the Roman emperor Nero routinely watched gladiator fights through emeralds. In ancient China of the 12th century there were instead smoky quartz glasses, which served to protect the eyes from the sun.
However, the first glasses equipped with lenses that filter UVA rays were born in the glass factories of Murano, in Venice. These are devices from the 18th century, called “gondola glasses” or more simply “lady glasses”. Today, modern technology has produced an infinite number of different sunglasses: the most widespread are certainly those characterized by photochromic lenses. For example, the latter manage to darken when hit by sunlight and lighten in the absence of UV rays. However, not all devices bring benefits to the eyes. Cheaper sunglasses can actually damage a person’s vision.
Why then are they not recommended? First, cheap lenses make the eyes work harder to see, which is why some individuals experience severe headaches. In particular, land pupils dilate more to let more light penetrate the eyes, since low cost lenses do not allow optimal vision. And not only that: this constant expansion can generate a annoying headache. All consumers should therefore not trust sellers who offer cheap sunglasses with the words “Protection against UVA rays”. The latter is in fact guaranteed exclusively on the original glasses, which are usually sold at a very high price.
