Table 7.
Calculating CVS prevalence based on the 5DC (Table 1)
| Criteria | 5DC components | Online responses by 6853 medical students, n (%) | |
|---|---|---|---|
| Yes | No (Zero count) | ||
| Criterion 1 | Presence of one or more ocular complaints | 5946 (86.76) | 907 (13.24) |
| Criterion 2 | Presence of one or more extraocular complaints | 6538 (95.40) | 315 (4.60) |
| Criterion 3 | Presence of one or more risk factors/practices | 6327 (92.32) | 526 (7.68) |
| Criterion 4 | All complaints consistently related to time of screen use | 5155 (75.22) | 1698 (24.78) |
| Criterion 5 | ≥2 symptoms/attacks per month over the last 12 months | 4533 (66.15) | 2320 (33.85) |
| Prevalence | CVS case | 4028 (58.78) | 2825 (41.22) |
Abbreviations: CVS, Computer vision syndrome; 5DC (Table 1), five subjective diagnostic criteria for accurate computer vision syndrome diagnosis. Note: CVS case; A case was considered CVS case if the participant completed the 5DC and responded “Yes” to all 5DC questions.