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Tear characteristics of the VDU operator
1Department of Optometry and Vision Science, Glasgow Polytechnic, Scotland, United Kingdom.
Summary
Visual Display Unit (VDU) operators had greater tear volume than non-VDU users, but tear film stability remained unchanged. No correlation was found between tear volume and stability in either group.
Area of Science:
- Ophthalmology
- Occupational Health
- Human-Computer Interaction
Background:
- Visual Display Unit (VDU) use is prevalent in modern workplaces.
- Concerns exist regarding the impact of VDU use on ocular surface health.
- Tear film stability and volume are crucial indicators of ocular comfort and health.
Purpose of the Study:
- To investigate the effects of VDU operation on tear film volume and stability.
- To compare tear film characteristics between VDU operators and a control group.
- To explore the relationship between tear film volume and stability in VDU users.
Main Methods:
- Noninvasive tear measurement techniques were employed.
- Precorneal tear film stability was assessed.
- Tear film volume was quantified.
- Two groups were studied: VDU operators and non-VDU operators.
Main Results:
- No significant difference in precorneal tear film stability was observed between VDU operators and non-VDU operators.
- VDU users exhibited a greater tear volume compared to the non-VDU operating group.
- No correlation was found between precorneal tear film stability and tear volume.
Conclusions:
- VDU operation may influence tear volume but not tear film stability.
- Ocular surface hydration might be affected by prolonged VDU use.
- Further research is needed to understand the clinical implications of increased tear volume in VDU users.