Table 2.

Sample of the evaluation sheet showing the mean mark for each aspect.

		1–4	5–6	7–10
First impression	1. lightness of the device	■	□	□
	2. comfort	□	□	■
	3. ease to focus	■	□	□
	4. video quality	□	□	■
	5. audio quality	□	□	■
	6. ease to wear the device	□	□	■
	7. ease to use the device (in general)	□	■	□
While watching	8. sense of constriction	■	□	□
	9. discomfort (□ nasal ■ ocular □ auricular)	□	■	□
	10. pain (□ nasal □ ocular □ auricular)	■	□	□
	11. steadiness of the device on the face	□	□	■
At removal	12. memory of the weight of the device	■	□	□
	13. discomfort (□ nasal □ ocular □ auricular)	■	□	□
	14. pain (□ nasal □ ocular □ auricular)	■	□	□
	15. eye strain	■	□	□
	16. eye dryness	■	□	□
	17. headache	■	□	□
	18. dizziness	■	□	□
	19. nausea	■	□	□
	20. tinnitus	■	□	□

Patients expressed their personal evaluation from 1 (completely negative evaluation or absence of the sensation in question) to 10 (completely positive evaluation or presence of the sensation in question). Scores were interpreted inversely based on the positive or negative nature of the factor in question: scores from 1 to 4 were considered indicators of a negative impression if the question pertained to a positive factor (or a positive impression in the case of a negative factor); scores of 5 and 6 were considered indicators of a neutral impression; and scores from 7 to 10 were considered indicators of a positive impression if the question pertained to a positive factor (or a negative impression in the case of a negative factor).