Table 1.

Dry eye questionnaire.

Symptom	No	Occasionally	Incontinuous	Continuous
Foreign bodies sensation	0	1	2	3
Photophobia	0	1	2	3
Itching	0	1	2	3
Aching	0	1	2	3
Dryness	0	1	2	3
Heavy sensation	0	1	2	3
Blurred vision	0	1	2	3
Fatigue	0	1	2	3
Discomfortableness	0	1	2	3
Ocular discharge	0	1	2	3
Lacrimation	0	1	2	3