How to Avoid Foggy Glasses When Wearing a Face Mask
Why do your glasses fog up when you’re wearing a face mask?
British optometrists Margrain and Owen described the mechanism that causes glasses to mist up. Glass or plastic lenses will usually attain a temperature that’s close to that of their environment. When you are in a cool place and exhale into your mask, the mask blocks and re-directs some of your breath up toward the top edge of the mask and under your glasses. the warm moist air of your breath reaches the lens surface. When the warm breath hits the cool lens, the water in the breath condenses causing your lenses to fog up.
The problem with having foggy lenses, apart from being just plain annoying, is that you’ll want to grab your eyeglasses to either wipe them off or lift them temporarily away from your face to allow them to de-fog before re-applying them. And this breaks the cardinal rule of preventing the spread of Covid-19, namely “Don’t touch your face.”
How to stop glasses from fogging up when wearing a face mask?
For all you eyeglass wearers who’ve been struggling to read your grocery list under a constant fog or panicking when you find yourself adjusting your eyeglasses in the supermarket, here are a few tips from medical providers for avoiding foggy glasses while wearing a face mask that won’t harm your glasses.
The Rub-a-Dub-Dub: According to an article published in the Annals of the Royal College of Surgeons of England, a simple method to prevent eyeglass fogging while wearing a mask is to wash your glasses with soapy water, shake off the excess and let the lenses air dry. By not rinsing or toweling off the glasses, you leave a fine soap film on the lenses that reduces the surface tension and causes the water molecules to spread out in an even transparent layer that prevents the glasses from fogging up. In fact, the anti-fogging drops used for scuba masks and ski goggles work exactly this way.
The Tissue Trap: Another trick you can use to prevent your breath from fogging up your glasses is to place a folded tissue between your mouth and the mask. This will absorb the moist warm air before it can reach the top of your mask and get under your glasses. Just remember to tie your mask snugly so that the tissue won’t fall out of the bottom.
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The NFL initial changed the rules after Baltimore Ravens cornerback Marlon Humphrey took a COVID-19 test, played against the Pittsburgh Steelers on Sunday and then on Monday got a positive test result back. There were six Ravens players that were considered high-risk due to their close contact with Humphrey and now they're forced to quarantine for five days. Couple that news with the latest from the 49ers, and its evident why the NFL is enforcing these new face mask rules.
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MLB tightening virus protocols, including masks in dugouts
NEW YORK — Major League Baseball is cracking down on coronavirus safety protocols, mandating that players and staff wear face coverings at all times, including in the dugouts and bullpens, except for players on the field of play.
The league sent a memo to teams Wednesday outlining changes to its 2020 operations manual after outbreaks on the Miami Marlins and St. Louis Cardinals led to 21 postponements in the first two weeks of a shortened 60-game season.
The memo, obtained by The Associated Press on Wednesday night, says that repeated or flagrant violators of the protocols could be banned from participating in the 2020 season and postseason.
That includes those who don’t wear face coverings while watching from the dugout. Although such measures were suggested in MLB’s operations manual before Wednesday, some players have continued to not wear face masks, offer high fives, spit and violate the protocols in other ways during games.
Umpires are also being instructed to wear face masks at all times, except when it would make it unfeasible for them to do their jobs.
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