Table 3.

Scoring of the EDSQ

Dimension	Included items	Score calculationa
Concerns about treatment (five items)	Discomfort Worries about putting things in eyes Blink reflex Treatment as a burden Feeling about lifelong treatment	If at least three items are available: (Mean of item scores - 1) × 25
Concerns about disease (two items)	Fear of disease evolution Thinking about the disease consequences	If at least one item is available: (Mean of item scores - 1) × 25
Satisfaction with patient-clinician relationship (five items)	Satisfaction with visit frequency Satisfaction with the information given by the ophthalmologist Frequency of information given by the ophthalmologist about eye-pressure level Frequency of information given by the ophthalmologist about visual acuity Satisfaction with care	If at least three items are available: (Mean of item scores - 1) × 25
Positive beliefs (three items)	Confidence in the effectiveness of the treatment Feeling about feedback and motivation Feeling about follow-up and motivation	If at least two items are available: (Mean of item scores - 1) × 25
Treatment convenience (three items)	Convenience of the delivery system in bottle opening Convenience of the delivery system in drop dosing Convenience of storage conditions	If at least two items are available: (Mean of item scores - 1) × 25
Self-declared compliance (three items)	Self-assessed compliance over the last 4 weeks Frequency treatment is forgotten in general Frequency of voluntary break from treatment	If at least two items are available: (Mean of item scores - 1) × 25

^aHigher dimension scores reflect more of the attribute implied by the name (e.g. higher concern about disease, greater satisfaction with patient-clinician relationship).