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戴口罩眼鏡起霧怎麼辦？英國醫生一招輕鬆解決
By Shelly Yang, The China Post
2020年2月18日 上午3:54
【看英文中國郵報學英文】武漢肺炎疫情延燒，民眾戴口罩保護，然而，戴口罩時眼鏡片
容易起霧怎麼辦？
Wearing glasses is already quite cumbersome, and if things couldn’t get any
worse, your glasses may start to fog up and make seeing more challenging when
wearing a face mask.
英國貝德福德醫院（Bedford Hospital）醫師Sheraz Shafi Malik和英國之心（HEFT）醫
師Shahbaz Shafi Malik在《英國皇家外科醫學院年報》（Ann R Coll Surg Engl.）刊登
的文章指出，用肥皂水改變水滴張力，可解決鏡片起霧問題。
In an article published on “Annals of The Royal College of Surgeons of
England,” however, two doctors, Sheraz Shafi Malik and Shahbaz Shafi Malik,
from Bedford Hospital and HEFT respectively, unveiled that soapy water could
solve the problem of glasses fogging up.
文內提到，戴上口罩前，先用肥皂水清洗鏡片，將殘留在鏡片上多餘水分甩乾，接著將鏡
片自然風乾，或是用衛生紙輕擦鏡面。之後當戴著口罩時，眼鏡也不再起霧。
Before wearing your face mask, wash your spectacles with soapy water and
shake off the excess water. Then, let the glasses air dry or wipe them with
soft tissues. Your glasses shouldn’t be fogging up anymore, according to the
article.
至於為什麼戴口罩時眼鏡容易起霧，兩位醫師解釋道，戴口罩呼氣時會從口罩上方引到眼
鏡，而呼氣中水分熱度較高，碰到較冷的鏡片時會凝結成小水滴，因表面張力凝聚在一起
，而導致起霧的現象。
Why? The doctors said that a face mask directs much of the exhaled air
upwards where it gets into contact with the lenses. Condensation occurs on
glass lenses when water vapor — from your breath — gets into contact with
on a cold surface, forming a film you see as fog.
醫師寫道，肥皂水能夠破壞水分子的表面張力，讓水平均擴散，眼鏡就不會起霧了。
According to the article, soapy water reduces the surface tension so water
would spread out evenly. As a result, your eyeglasses shouldn’t be fogging
up when wearing a face mask.
https://tinyurl.com/u4unv4k
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※ 文章網址: https://www.ptt.cc/bbs/optical/M.1582007533.A.74D.html
※ 編輯: sony577 (111.251.226.180 臺灣), 02/18/2020 14:32:43