id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-297377-yy1dq81q	Poostchi, Ali	Efficacy of slit lamp breath shields	2020-05-12		.txt	text/plain	1205	67	63	Breath shields have long been a standard feature of slit lamps and act as a physical barrier between the examiner and subject but there is an absence of evidence on their effectiveness in reducing droplet transmission and respiratory infections. We then tested the effect of placing a fluid resistant surgical facemask (BARRIER 4313, Mölnlycke Healthcare, Sweden) over the nebuliser mouthpiece alone and in combination with the large shield. The surgical facemask and large shield offered the best protection, while the small standard shield seemed to be effective for larger particles (Fig. 2) . Evidence from a large-clusterbased randomised control trial showed no benefit from using N95 masks compared to surgical facemasks to reduce influenza and other respiratory viral illnesses [8] . Despite the close proximity of slit lamp examinations, the effectiveness of shielding together with the short contact time and lack of aerosol generation, leads us to expect the risk of transmission from this route to be low.	./cache/cord-297377-yy1dq81q.txt	./txt/cord-297377-yy1dq81q.txt