ประสิทธิผลของโปรแกรมแจ้งเตือนการพักสายตาตามหลักการ 20-20-20 ต่อกลุ่มอาการคอมพิวเตอร์วิชั่นซินโดรม ในบุคลากรสายสนับสนุนโรงพยาบาล

Ekke Kunphol; Supakorn  Tultrairatana

Authors

Ekke Kunphol Institute of Occupational and Environmental Medicine, Nopparat Rajathanee Hospital
Supakorn Tultrairatana Institute of Occupational and Environmental Medicine, Nopparat Rajathanee Hospital

Keywords:

computer vision syndrome, 20-20-20 rule, digital break reminder, hospital support staff

Abstract

Objectives: Hospital support staff are at high risk of Computer Vision Syndrome (CVS) due to prolonged computer use. While the 20-20-20 rule is a standard recommendation for eye rest, adherence is often poor without active reminders. This study aimed to evaluate the effectiveness of a digital break reminder software , based on the 20-20-20 rule, in reducing CVS severity among hospital support staff. Methods: A quasi-experimental study was conducted with 43 support staff members working at a hospital in Bangkok, who used computers for more than 4 hours daily. The EyeLeo software was installed on participants' computers to provide automatic break reminders every 20 minutes for a duration of 3 weeks. CVS severity was assessed using the Thai version of the Computer Vision Syndrome Questionnaire (CVS-Q) at baseline, week 2, and week 3. Data were analyzed using Repeated Measures ANOVA. Results: The study found that the mean CVS severity score significantly decreased after the intervention (p < 0.001). The prevalence of CVS dropped from 100% at baseline to 97.7% at week 2, and significantly further to 41.9% at week 3. These findings suggest that consistent use of the reminder software over time leads to better symptom relief. Conclusion: The application of the 20-20-20 rule via digital reminder software is effective in reducing both the severity and prevalence of CVS. It is a practical and low-cost intervention recommended for occupational health promotion in hospital settings.

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