Researchers at the University of Furtwangen studied in use, the glasses to their colonization by bacteria. They found germs including the pathogens for diseases of the eye. According to their study, the correct cleaning is critical.
All you need is the glasses is a daily companion and a true bacteria slingshot. And thus, a risk for sensitive eyes. The researchers at the University of Furtwangen found. Against germs especially the right cleaning helps.
Germs don’t sit on the glasses
Many eyeglass wearers do here, but it’s a mistake. The sporadic Clean the lenses with a dry microfiber cloth or briefly Wiping it on the clothes, has only minimal effect. Because most of the germs sitting on the Set with direct body contact. So on the nose pads or the earhooks. The researchers calculated a peak value of 666.000 bacteria per square meter on a nose pads.
In the case of the cleaning of complete glasses with moist lens cleaning cloths, on the other hand, a germ reduction of up to 99 percent, according to the scientists. Also with alcohol-free cleaning cloths, you came to the conclusion. A dry cleaning only reaches 85 to 90 per cent microbial reduction.
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Risk for eye diseases
For their study, the researchers examined the glasses of students at the University, as well as the residents of a nursing home. An average of the test were colonized objects. However, the glasses of seniors with 230 species of bacteria per square meter, is significantly more germs. Especially for typical skin and mucous membrane bacteria of the genus Staphylococcus glasses provide an optimum breeding ground.
Of harmful pathogens settled potentially. Among other things, the team of researchers, a trigger for diseases of the eye, such as conjunctivitis. For healthy people, the glasses is not a large risk, so the biologists. In people with a weakened immune system is the found bacteria that can trigger diseases.
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