Why do glasses lenses fog up in winter?

Lens fogging in winter is a very common physical phenomenon. In winter, people wearing myopia glasses enter a warm room from outside, or when a cold lens encounters hot air, due to the large temperature difference, there will be encounters on the cold lens. Tiny water droplets formed by cold and heat, the technical term for this phenomenon is "atomization".

What is the principle of anti-fog lenses?

Essilor anti-fog lenses use a top film with anti-fog function on the lens, plus an anti-fog cleaning lens cloth with innovative prevention technology and a unique molecular structure. Fog-free visual experience! It can be seen that this anti-fog lens can easily solve the problem of myopic friends such as fog, and there is no need to worry about fog hindering vision and causing embarrassment in winter! It can be seen that it is very necessary for myopic friends to start a pair of anti-fog glasses in winter, and Essilor anti-fog glasses not only have the function of anti-fog, but also have the functions of anti-glare, wear resistance and easy cleaning.

Precautions for the use of anti-fog lenses

So if you buy anti-fog glasses, what should you pay attention to when using them? Is this lens permanently fog-proof? In fact, through the above understanding, the anti-fog lens is used with the lens film and anti-fog lens cloth, so as long as the lens film layer is intact, and the anti-fog lens cloth can still be used, it also has anti-fog effect, and the anti-fog lens cloth The service life is generally more than 450 times of wiping, and it is usually about 3 months. At the same time, it is not recommended to wash the anti-fog cleaning without water. If you still want to use the anti-fog function of the lens later, you only need to buy a new pair of anti-fog lens cloth.