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Conference paper

The effects of radiant cooling versus convective cooling on human eye tear film stability and blinking rate

In Proceedings of Indoor Air 2014 — 2014
From

Technical University of Denmark1

Department of Civil Engineering, Technical University of Denmark2

Section for Indoor Environment, Department of Civil Engineering, Technical University of Denmark3

The effect of indoor temperature, radiant and convective cooling on tear film stability and eye blink frequency was examined. 24 human subjects were exposed to the non-uniform environment generated by localised chilled beam and a chilled ceiling combined with overhead mixing ventilation. The subjects participated in four two-hour experiments.

The room air temperature was kept at 26 °C or 28 °C. Tear film samples were collected after 30 min of acclimatisation and at the end of the exposures. Eye blinking frequency was analysed for the first and last 15 min of each exposure. The tear film stability decreased as the temperature increased. The highest number of subjects with unchanged or improved tear film quality was observed with the localised chilled beam at 26 °C.

A trend was found between subjects who reported eye irritation and had a bad tear film quality.

Language: English
Publisher: International Society of Indoor Air Quality and Climate
Year: 2014
Proceedings: 13th International Conference on Indoor Air Quality and ClimateInternational Conference on Indoor Air Quality and Climate
Types: Conference paper
ORCIDs: Melikov, Arsen Krikor

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