Effect of atmosphere on the tear film layer

Aim: to demonstrate the effect of the atmosphere (heat and humidity) on the eye by comparing the outdoor and indoor workers. Method: 120 eyes of 60 subjects volunteers from the Saudi electrical company (SECO), their age range was 24 to 40 years. The Schirmer strips test and break up time test were used to evaluates tear film quantity and quality. Result: The results demonstrate that there is a statistical significant difference in tear film quantity and quality between the outdoor and indoor subjects using the Schirmer test and break up time test. Conclusion: This study show the effect of atmosphere heat and humidity on the tear film layer, and the results demonstrate that there significant difference in the tear film quantity and quality between the outdoor and the indoor subjects.