How to Cite: Efendi, S., Sriyanah, N., Fatmawati, F., Livana, P. H., Suswani, A., & Nuratifah, N. (2022). Duration of smartphone usage in online learning during the COVID-19 pandemic and the occurrence of computer vision syndrome in the students of MTsN 1 Bone. International Journal of Health Sciences, 6(S5), 7652–7659. https://doi.org/10.53730/ijhs.v6nS5.11668 International Journal of Health Sciences ISSN 2550-6978 E-ISSN 2550-696X © 2022. Manuscript submitted: 9 April 2022, Manuscript revised: 18 June 2022, Accepted for publication: 27 July 2022 7652 Duration of smartphone usage in online learning during the COVID-19 pandemic and the occurrence of computer vision syndrome in the students of MTsN 1 Bone Suradi Efendi Sekolah Tinggi Ilmu Kesehatan Makassar, Indonesia Correspondent author email: atolnurse@gmail.com Nour Sriyanah Sekolah Tinggi Ilmu Kesehatan Makassar, Indonesia Fatmawati STIKES Panrita Husada Bulukumba, Indonesia Livana PH Sekolah Tinggi Ilmu Kesehatan Kendal, Indonesia Andi Suswani STIKES Panrita Husada Bulukumba, Indonesia Nuratifah Sekolah Tinggi Ilmu Kesehatan Makassar, Indonesia Abstract---The smartphone screen emits ultraviolet radiation and X- rays, and if exposed for a long time, eye health problems may occur. One of these disorders is Computer Vision Syndrome (CVS). This research is to determine the duration of smartphone usage in online learning during the Covid-19 pandemic and the occurrence of computer vision syndrome in the students of Mtsn 1 Bone. The research design used was descriptive research. The population was 1.289 students, and the sample used as many as 309 students were a combination of representatives from grades 7, 8, and 9 with the Proportional Stratified Random Sampling technique. The results showed the duration of smartphone usage in online learning by 170 students (55%) with ≥ 3 hours of use. And the complaints of CVS disorders were 185 students (59.9%) with neck pain. Then the duration of smartphones usage outside of online learning was 79