Table 2.

Questionnaires used to evaluate symptoms of dry eye disease (DED).

Questionnaire	Initial Launch	No. of Questions	Screening Criteria for DED	Recommendations for Use
McMonnies [40]	1987	12	>14.5
Ocular Surface Disease Index (OSDI) [41]	2000	12	Mild: 13–22 Moderate: 23–32 Severe: ≥33	Suitable for research and ATD
National Eye Institute’s Visual Function Questionnaire (NEI-VFQ 25) [42]	2001	25		Adapted for moderate-to-severe dry eye Strongly correlated with OSDI
Dry Eye Questionnaire (DEQ) [43]	2002	23
Ocular Comfort Index (OCI) [44]	2007	12		The only questionnaire that provides valid measurement based on Rasch analysis
Symptom Assessment in Dry Eye (SANDE) [45]	2009	2		Suitable for clinical assessment
Standard Patient Evaluation of Eye Dryness (SPEED) [46]	2009	12	No symptoms: 0 Mild-to-moderate: 1–9 Severe: ≥10	Suitable for Meibomian gland dysfunction
Impact of Dry Eye on Everyday Living (IDEEL) [47]	2011	57	Mild 40–50 Moderate 51–63 Severe > 64
Dry Eye-related Quality-of-life Score (DEQS) [48]	2013	15
5-Item Dry Eye Questionnaire (DEQ-5) [49]	2013	5	keratoconjunctivitis sicca: > 6 Suspected Sjögren’s syndrome: >12
Chinese Dry Eye Questionnaire [50]	2015	12		Questionnaire validated in the Chinese population

ATD = aqueous tear deficiency.