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