Impact of Air Movement on Eye Symptoms

Arsen Krikor Melikov, Tomonori Sakoi, Sona Kolencíková, Naoto Tominaga

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    Abstract

    The impact of direction, oscillation and temperature of isothermal room air movement on eye discomfort and tear film quality was studied. Twenty-four male subjects participated in the experiment. Horizontal air movement against the face and chest was generated by a large desk fan – LDF and a small desk fan (2.5 W) powered by laptop computer – USBF and upward movement by a personalized ventilation supplying air from desk front edge - PV. The exposed subject had control over the rotation speed of the fans as well as the personalized airflow rate and its direction to be against the chest, upward to the face or both. At room air temperature of 25 °C and relative humidity of 50 % the subjects were exposed for 30 min to three conditions - without elevated air movement and USBF with and without oscillation and to six conditions at 30 °C and 50 % RH – without elevated movement, USBF without oscillation when the airflow was directed against the face and when against the chest, LDF with and without oscillation and PV. Eye tear film samples were taken and analyzed at the beginning and the end of the exposures. Eye irritation and dryness were reported by the subjects. The air movement under individual control did not change significantly the tear film quality though tendency for improvement was observed. Eye dryness increased much when the airflow was blowing constantly against the face compared to oscillating airflow, airflow directed against the chest and upward airflow against the face.
    Original languageEnglish
    Title of host publicationProceedings of 11th REHVA World Congress and the 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings
    Number of pages10
    Publication date2013
    Article number959
    Publication statusPublished - 2013
    EventClima 2013: 11th REHVA World Congress & 8th International Conference on IAQVEC - Prague Congress Centre, Prague, Czech Republic
    Duration: 16 Jun 201319 Jun 2013
    Conference number: 11
    http://www.clima2013.org/

    Conference

    ConferenceClima 2013
    Number11
    LocationPrague Congress Centre
    Country/TerritoryCzech Republic
    CityPrague
    Period16/06/201319/06/2013
    Internet address

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