PMID: 16512338Mar 4, 2006Paper

Influence of microclimate factors on ocular discomfort in video display terminal workers

Giornale italiano di medicina del lavoro ed ergonomia
C FengaO C Grillo

Abstract

The objective of the present research was to evaluate the effect of environmental parameters (temperature, air velocity, relative humidity, illumination level, cubature) on ocular symptoms (tiredness, tearing, redness, blinking, itching, burning, photophobia, foreign body sensation, and heaviness) in a group of 54 male Video Display Terminal (VDT) workers. The subjects were employed in a public office placed in Messina and naturally ventilated; the investigation was performed in Spring time. Information about the ocular symptoms, occurring during the workshift, were gathered through a questionnaire; environmental measurements were performed by a data collector LSI. The results showed that 43 subjects out of 54 (79%) reported a lack of eye comfort; in addition the illumination level, temperature and air velocity were not consistent with those suggested by the Italian Regulatory Authority. A significant correlation between illumination level, temperature, air velocity and eye discomfort (tearing, heaviness, blinking, photophobia itching, respectively) was found. The Authors conclude that the inadequate environmental condition, possibility in interaction with the indoor chemical contaminants and the workload at VDT, may be respons...Continue Reading

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