Table 2: Time spent for each item and correlations with DED symptoms. The table shows the Spearman’s rho ( ) and values.

ActivityCorrelation (Spearman’s rho values) and significance ( values)
Sensitivity to lightEpisodic blur visionBurning sensationGritty sensationFluctuating vision with blinkingBlurring of vision relief by lubricants

Use of air conditioning


Watching television

Computer use


Windy environment

* , negative correlation.
, positive correlation.