Table 2. Office lighting evaluation questionnaire.

Questions	Score
Preferences	Scale from zero	(no) to four (yes)
1. Like the lighting in this office.	Yes: 0
2. In general, the lighting in this office is comfortable.
3. This color of light allows me to carry out different tasks.
4. My skin looks natural under the light.
5. The lighting in this office is too warm.
6. The lighting in this office is too cold.
Symptoms	Scale from zero	(no) to four (yes)
7. I feel eye strain.
8. My eyelids are heavy.
9. My eyes feel dry.
10. I have burning eyes.
11. I have a headache working under this CCT of light.
12. I have difficulties seeing objects on the screen.