Mask has become a daily commodity, but it is a little unfriendly to friends who wear glasses – after wearing mask, it is easy to hang a layer of fog on the lens.
In the face of these annoying fog, is there any solution?
Come and learn from this Zhihu answer Lord and give you a clear vision!
Wearing mask glasses will produce fog. What should I do?
Recently, the epidemic situation has improved, with fewer and fewer new diagnoses and more and more cured people every day. I believe that the end of the epidemic is just around the corner.
However, as long as the epidemic is not officially declared over, self-protection cannot be relaxed for a moment.
However, some friends recently reported that masks and glasses simply can’t coexist. After wearing masks, the glasses fog as soon as you exhale, which is very inconvenient.
The fog on their glasses also forced them to wear masks repeatedly, which virtually increased many risks. What shall I do? Don’t worry, today I’ll share some practical ways to make your glasses no longer foggy!
Method 1: glasses pressure mask method
The easiest way is to put your glasses on the mask when you wear glasses. We can lift the mask up to the bottom of the eye, then adjust the wire on the mask to make it close to the bridge of the nose and finally put the glasses on the mask.
In this way, the exhaled heat is not easy to disperse, and a small amount of heat escaping is not easy to touch the lens and condense, so the glasses are not easy to fog.
However, this method has a small defect, that is, it will enlarge the distance between the eye lens and the eyeball, change the correct use distance of the glasses, and can not play the best correction effect, so it should not be used for a long time.
Method 2: pad paper towel method
Why do we wear masks and the lenses fog easily? This is because the gas we exhale contains water vapor. When the warm water vapor touches the cold lens, it will liquefy on the surface of the lens to form small water droplets, so the lens will fog.
Therefore, as long as we reduce the gap between the mask and the face and block the rise of water vapor, we can prevent the lens from fogging. The paper towel method uses this principle.
We can take a paper towel, fold it into a strip, pad it under the metal strip of the mask, and then bend the metal strip according to the curve of the bridge of the nose to make it fully fit.
In this way, the paper towel padded under the metal strip of the mask fills the gap between the mask and the face, greatly reducing the escape of our exhaled heat, and the lens is not easy to fog.
Method 3: smear the lens with detergent, shower gel, etc
Applying hydrophilic surfactant to the lens surface is also one of the methods to prevent the lens from fogging.
We can dissolve detergent, shower gel and other products containing surfactants in water, then soak the lens in it, and then wipe the water dry with glasses cloth or paper towel.
As long as you don’t touch water, your glasses won’t fog all day. Isn’t it amazing?
This is because the effective active ingredient in detergent – “anionic surfactant” is hydrophilic. When they form a film on the surface of the lens, this hydrophilic and lipophilic molecule can pull the fog into a water film on the surface of the glasses.
Unlike water droplets, a uniform water film can greatly reduce the diffuse scattering of light, so as to maintain the high transparency of the lens.
Be careful:
1. Although this method has good practical effect, it is also easy to damage the lens, and it is not recommended to use it often; 2. When wiping the water on the lens surface with glasses cloth or paper towel, press instead of rubbing back and forth to reduce the damage to the lens.
Method 4: use antifogging glasses cloth antifogging spray
General friends’ glasses do not have anti fog function, and it is not convenient to reconfigure a pair of anti fog glasses at this time. You might as well try anti fog glasses cloth and anti fog spray (a good partner of swimming goggles).
Anti fog spectacle cloth:
The anti fog principle is that the nano anti fog factor on the spectacle cloth can form a protective film on the surface of the lens to prevent water vapor from condensing on the mirror and achieve the anti fog effect.
Anti fog spray for glasses:
It has the functions of cleaning, decontamination, frost prevention and fog prevention. Spray it on the lens and wipe it. Generally, it can keep it free from fog for about 3 days.
The same principle, anti fog glasses cloth and anti fog spray can also be used to prevent the car’s rear-view mirror or windshield from fogging.
Tips:
At this stage, it is best not to wear contact lenses to avoid cross infection.
If you must wear contact lenses, wash your hands and disinfect them carefully before taking them off, and wash your contact lenses carefully to avoid infection.
Comments