(42) Do you have any countermeasure against negative health conditions following use of a smartphone (multiple answers allowed) | 1. Decreasing the duration of use 2. Frequent breaks 3. Applying eye lotion 4. Using protective eyeglasses 5. Using in a place with sufficient brightness 6. Viewing the screen from a distance 7. Not using before sleeping 8. Visiting hospitals 9. Taking medications 10. Doing eye massages 11. Looking far away 12. Using with eyes closed 13. Eye exercises |