E-nergEYEze, a vision-specific eHealth intervention based on cognitive behavioral therapy and self-management to reduce fatigue in adults with visual impairment: study protocol for a randomized controlled trial

Table 2 Study design

		Study period
	Enrolment	Baseline assessment	Allocation	Post-allocation assessments
Timepoint	T -1	T 0		T 1	T 2	T 3	T 4
Enrolment:
Informed consent	X
Eligibility screening	X
Baseline assessment		X
Randomization			X
Intervention:
E-nergEYEze		X		X	X	X	X
Care as usual		X		X	X	X	X
Assessments:
General questionnaire		X
Primary outcome	X				X		X
Secundary outcomes
- Clinical effectiveness		X		X	X	X	X^a
- Cost effectiveness		X^b		X	X^b	X	X^b
Process evaluation		X			X^c
Working mechanism		X			X		X

^aAdditional assessment “Past life Events”
^bAdditional assessment “Euroqol-5 Dimensions with 5 levels”
^cAdditional assessment for intervention group “Dutch Mental Healthcare thermometer”

ISSN: 1745-6215