| 
      
        | Symptoms | Contact    lens users | Non-contact    lens users |  
        | (Chi-Square    =13.78; p=0.009) | (Chi-Square    =15.48; p=0.001) |  
        | Male | Female | Male | Female |  
        | With symptoms of dry eye | 13/122 (10.7%) | 109/122
          (89.3%) | 61/153 (39.9%) | 92/153 (60.1%) |  
        | Without symptoms of dry eye | 8/44
           (18.2%) | 36/44
           (81.8%) | 139/307 (45.3%) | 168/307 (54.7%) |  |