A follow-up study failed to repeat the results of the original Computer vision syndrome study in 2008 .
A Pacific University research study of 36 participants found significant differences in irritation or burning of the eyes , tearing , or watery eyes , dry eyes , and tired eyes , that were each improved by filtering lenses versus placebo lenses , but in a follow-up study in 2008 , the same team was not able to reproduce the results of the first study.
Computer vision syndrome