vision loss visual disability (visual impairment)
Conditions
Interventions
Not applicable.
determinants
fatigue
intervention
visual impairment
Sponsors
Vrije Universiteit Medisch Centrum
Eligibility
Age
18 Years to 64 Years
Inclusion criteria
Inclusion criteria: - Aged 18 years and older. - Registered at one of the two low vision rehabilitation centres (ensuring a visual impairment). - Sufficient mastery of the Dutch language: participants need to be able to understand the Dutch questionnaires and be able to answer the questions in Dutch.
Exclusion criteria
Exclusion criteria: - Severe cognitive impairment: participants need to be able to understand the questionnaires to be able to participate in the study. - Comorbid diseases: cancer, chronic fatigue syndrome, multiple sclerosis and psychiatric disorders (receiving treatment for any psychiatric disorder in the last year).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The main study parameter is fatigue severity, measured by the Fatigue Assessment Scale (FAS) and the Multidimensional Fatigue Inventory (MFI). | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary variables are: - Psychological wellbeing, general perceived health and physical activity. - Vision-related quality of life and the need for recovery after work. - Perceived control and self-efficacy. - Cost evaluation associated with fatigue. Independent variables are: - Demographic data: age, gender, education level, marital status, living situation, religion and profession/daytime activities. - Disease related variables: co-morbidity, cognitive functioning and ophthalmic data. | — |
Countries
The Netherlands
Outcome results
None listed