Does wearing glasses prevent COVID-19?
A tale of research so terrible that I just had to write about it ping @MackayIM @erinbiba @picardonhealthhttps://gidmk.medium.com/can-glasses-stop-covid-19-e7b7a91fac79 …
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@gidmk so what is the answer?5 replies 0 retweets 4 likes -
Replying to @kprather88 @MackayIM and
We don't have sufficiently good research to conclude much, but in the absence of evidence it seems unlikely that there would be a large effect. The blog goes into more detail
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Have you considered the ratio of big ballistic droplets to tiny floating aerosols? 1000:1 in speech.
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Replying to @kprather88 @GidMK and
So you're agreeing the risk is lower from ballistic droplets but that we agree smaller particles are likely a bigger, more common risk and can easily get around spectacles?
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Replying to @MackayIM @kprather88 and
The surface area of the respiratory tract is 50-100 m2, and it has air continually passing back and forth over it as part of its function. The surface area of the eyes is around 0.001 m2. I won't rule out infection by aerosols in the eyes, but there's that.
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Replying to @linseymarr @MackayIM and
Glasses are a good reminder not to rub your eyes. Maybe a more plausible explanation for the reduction in risk seen in numerous observational studies
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Replying to @statesdj @linseymarr and
Or how about people with glasses have better fitting masks to avoid the common fogging of glasses caused by ill-fitting masks. Better fitting masks = better protection.
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Replying to @Stephen09522863 @statesdj and
Plausible. I find that my glasses to be a very hard-to-ignore meter for how well my mask fits around my nose.
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Me, too.
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It’s how I test them, too! And wear masks with spongy nose wire for better seal.
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