A warming eye mask without a head strap transferred more heat to the eyelids than the same mask worn with a strap, according to a study.
In the study, researchers evaluated the Blepha EyeBag warming eye mask using a composite manikin head and thermal imaging after heating the mask in a domestic microwave for 30, 45, and 60 seconds.
With the strap in place, eyelid temperatures were significantly lower, with the upper eyelid averaging 1.4 ± 1.9 °C less and the lower eyelid 2.5 ± 2.2 °C less. Upper and lower eyelids reached similar temperatures overall, and eyelid temperatures increased with longer heating times. Temperatures declined over time after heating at a similar rate regardless of whether the strap was used.
Reference
Saha M, Mustashin A, Wolffsohn JS, et al. Effect of a head strap on the function of an eyelid warming compress. Cont Lens Anterior Eye. 2026;;49(4):102692. doi: 10.1016/j.clae.2026.102692. Epub ahead of print. PMID: 42361717.
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