Table 8 Items and scoring rule of SSQ
From: Assessment of eye fatigue caused by head-mounted displays using eye-tracking
| N | O | D | |
|---|---|---|---|
| General discomfort | 1 | 1 | |
| Fatigue | 1 | ||
| Headache | 1 | ||
| Eye fatigue | 1 | ||
| Difficulty focusing | 1 | 1 | |
| Increased salivation | 1 | ||
| Sweating | 1 | ||
| Nausea | 1 | 1 | |
| Difficulty concentrating | 1 | 1 | |
| Fullness of head | 1 | ||
| Blurred vision | 1 | 1 | |
| Dizzy (eyes open) | 1 | ||
| Dizzy (eyes closed) | 1 | ||
| Vertigo | 1 | ||
| Stomach awareness | 1 | ||
| Burping | 1 | ||
| Total | [1] | [2] | [3] |