Table 6

Results for intangible effects

StudyOutcomes
Bramley et al15Depression occurs in patients with vision loss more often (about 17%) than in patients with no vision loss, placements in nursing homes are demanded in 25.3% more, injuries happen in 33.4% more cases and femur fractures in 67.4% more cases
Cruess et al19Loss of well-being and loss in quality of life evokes 77 306 DALYs or rather $C 11.7 billion in 2007 (US$ PPP 15.11 billion in 2011)
Vu et al34Non-correctable unilateral vision loss was addicted to independent living and reduced safety; bilateral non-correctable vision loss was associated with nursing homes, emotional well-being, use of community services, and activities of daily living
Wood et al36Increased visual impairment was significantly associated with an increased incidence of falls and other injuries. 54% of participants had at least one fall, 30% had more than one fall and 63% of falls ended in injuries
McCarty et al27A linear increase of 5-year mortality correlating with a degree of visual impairment was detected; even mild visual impairment is related to a more than twofold risk of death
Brezin et al16A burden in patients occurs because of the inability to undertake daily activities; the need for assistance correlates with the degree of visual impairment; the burden on the caregiver was caused by the restricted possibilities for going out for different periods or losing social contacts, affected physical and mental welfare and modified professional activities
Porz et al29In a questionnaire with a score scale 0–100 points, patients with VA ≥0.3 achieved 79.32 for mobility and independency, 69.64 for emotional well-being and 73.86 for reading and achievement of information; persons with VA <0.3 were rated with scores of 46.84, 61.43 and 44.25, respectively
Roberts et al31Loss of well-being was measured in DALYs; converted into a monetary value, this results in total annual costs of US$ 48.598 billion (US$ PPP 51.8 billion in 2011) and costs per capita of US$ 29 690 per year (US$ PPP 31 647)
Frick et al22The cases of blindness and visual impairment more than 209 000 QALY were projected to lost each year, this amounts to a monetary value of US$ 10 000 million (US$ PPP 12 150 in 2011)
  • DALYs,disability adjusted life years; VA,visual acuity.