Background: Computer Vision Syndrome (CVS) is a condition where individuals experience one or more eye complaints due to prolonged computer use, particularly when exceeding 4-6 hours per day. This study aimed to examine the effectiveness of a mobile eye exercise application, "Corevision," in reducing CVS among employees at STIKES Telogorejo. A preliminary study indicated that most employees experience CVS symptoms, such as heavy eyes (94.4%), itchy eyes (83.3%), and headaches (50%). 

Method: A quasi-experimental pre-test post-test with a control group design was employed. The sample consisted of 80 STIKES Telogorejo employees, divided into experimental (40) and control (40) groups, selected through purposive sampling from a total population of 100 employees. The Computer Vision Syndrome Questionnaire (CVS-Q) was used for measurement. Data analysis involved paired t-test, Wilcoxon, Mann-Whitney, and logistic regression tests. 

Results: There was a significant reduction in the experimental group after the intervention (p<0 p=0.007) OR=7.3).>

Conclusion: There was a significant difference between the experimental and control groups after the intervention, indicating a significant decrease in CVS scores. The most influential characteristic was a length of breaks less than 20 minutes. Corevision can be integrated into a company's web system as a preventive program against CVS.