EFFECTS OF VIDEO DISPLAY TERMINALS ON PRECORNEAL TEAR FILM SECRETION AND ACCOMMODATION OF THE EYE.

Joan Bryant, Archana Kumar

Abstract


Computers have become indispensable in the workplace. This has brought about the development of a number of health concerns including visual problems termed as Computer Vision Syndrome.1-4 This study evaluates the effect of VDT use on tear film dynamics and accommodation of the eye.

50 VDT workers and 50 appropriately matched individuals were selected. The spontaneous blink rate and near point of accommodation (NPA) was measured. The Schirmer’s test was used to measure the secretion of the tears. There was a significant decrease in the spontaneous blink rate during VDT work and also in the strength of accommodation giving rise to symptoms of asthenia.

Many of the potential eye problems related to VDT use can be reduced or eliminated by appropriate placement of the VDT, proper workplace design and regular professional eye care.


Keywords


Computer vision syndrome, accommodation, tears secretion.

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References


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