Background: Research shows that ability to get around (AGA) is significantly associated with perceived quality of life (PQOL) among older persons with self-reported visual impairment. Much of this impact, however, is through satisfaction with one's functional capacity. Satisfaction with functional capacity is a construct composed of five items: satisfaction with (1) activities of daily living, (2) capacity to work, (3) self, (4) health and (5) sleep. At present, it is not known how AGA interacts individually with these items to influence PQOL.
Purpose: The purpose of this study is to investigate the extent to which AGA interacts with each of these five items to affect PQOL.
Methods: Structural equation modelling was employed in a secondary-analysis of data from 356 persons (aged 56-72) with self-reported visual impairment to identify the pathways by which AGA affects PQOL.
Results: Satisfaction with self and health were the only items found to be both directly related to QOL and to provide a significant pathway between AGA and PQOL.
Conclusion: AGA significantly affects PQOL both directly and indirectly through its impact on people's satisfaction with self and health. Lessons may be learnt from this to better focus mobility interventions to enhance PQOL in this population.
Keywords: Functional capacity; mobility; older people; quality of life; vision.