Ex vivo heat retention of different eyelid warming masks

Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association
Zoé LacroixEtty Bitton

Abstract

Meibomian gland dysfunction (MGD) appears to be the most common cause of evaporative dry eye, in which the meibum has an altered chemical structure that increases its melting point. Eyelid warming masks slowly transfer heat, preferably between 40 and 45°C to the inner meibomian glands, in an attempt to melt or soften the stagnant meibum. This ex vivo study evaluates the heat retention properties of commercially available masks over a 12-min interval. Five eyelid-warming masks (MGDRx EyeBag®, EyeDoctor®, Bruder®, Tranquileyes™, Thera°Pearl(®) were heated following manufacturer's instructions and heat retention was assessed at 1-min interval for 12 min on a non-conductive surface. A facecloth warmed with hot tap water was used as comparison. All masks reached above 40°C within the first 2 min after heating and remained so for 5 min, with the exception of the facecloth, which lasted only 3 min and quickly degraded to 30°C within 10 min. The Bruder® and Tranquileyes™ reached >50°C, after heating and the Bruder® maintained >50°C for nearly 6 min. The MGDRx EyeBag®, and Thera°Pearl® had the most stable heat retention between 2 and 9 min, remaining between the targeted temperature. Heat retention profiles are different for commerciall...Continue Reading

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Citations

May 11, 2016·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Etty BittonStéphanie Léger
Jun 7, 2017·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Julie M Albietz, Katrina L Schmid
Sep 25, 2020·Ophthalmology and Therapy·Laura Valencia-NietoAlberto López-Miguel
Sep 25, 2017·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Laura E Downie, Jennifer P Craig
Nov 10, 2021·Acta Ophthalmologica·Morten Schjerven MagnoTor P Utheim

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