Extreme heat environments can irreversibly damage the glasses. High temperatures mainly affect plastic frames, which can deform and lose adjustment. Even the metal frames may be damaged, with components such as screws and welding weakening.
Intense heat and plastic frames
Dea agreement, temperatures in intense heat places, such as saunas, can easily exceed 70 degrees Celsius, a hostile environment for plastic materials. René Stanke, Zeiss Product Manager, reinforces this idea by stating: “Do not wear the glasses in the sauna or land on the lens. This will increase the life of your glasses.”
The fast heating and cooling process can create microfissures, reducing durability and affecting the comfort of use. For those wearing glasses daily, this type of damage may represent a significant problem, forcing the replacement of frames earlier than expected.
Damaged lenses by thermal shock
In addition to the frames, the same source states that lenses are also at risk within a sauna. The sudden transition between the intense heat of the sauna and the external environment can cause a phenomenon known as thermal shock. This phenomenon occurs when materials of different thermal expansions adapt to contrasting temperatures, resulting in possible cracks or lens distortions.
Lenses with specific treatments, such as anti -reflex or UV protection, are particularly susceptible. Heat can compromise the grip of these layers, creating bubbles or discoloration in more extreme cases. For users who depend on glasses for their daily lives, these changes represent not only an aesthetic annoyance, but also a significant reduction in the quality of vision.
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Skin burns
One of the least mentioned risks, according to Tulinen, when entering a sauna with glasses are the potential burns caused by excessive warming of the frames and lens.
Prolonged contact of skin heated materials may result in redness, irritation and, in more severe cases, small burns.
The face, being in direct contact with the glasses, is the most affected area. In extended exposure situations, users may feel discomfort and even light pain, especially if the frames are metallic, which heat faster than plastic ones. This problem can be aggravated by perspiration, which facilitates heat transfer to the skin.
Recommendations to avoid damage
To avoid these problems, it is recommended that the glasses be removed before entering a sauna. If the lack of vision is an obstacle, the solution is to choose an easily accessible place inside the sauna and leave the glasses in a safe place abroad. Thus, it is possible to enjoy the environment without compromising the health of the glasses or the integrity of the skin.
Alternatives such as disposable contact lenses, as referred to in the same source, can be considered for those who need constant visual correction. Another option is to limit exposure time in the sauna or choose spaces with controlled temperatures to minimize risk.
Despite the convenience that glasses provide everyday, taking them into a sauna can bring more damage than benefits. Risks to frames, lenses and even skin are real, and prevention is the best measure to prevent expensive damage and physical discomfort.
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