Washington: A new study has found that visual problems that cannot be corrected are linked to an increased risk of death in older adults.
At baseline, participants with noncorrectable visual impairment were more likely to be female, age 75 and older and underweight. Those with correctable visual impairment were more likely to be age 75 and older, but had no difference in proportions of women or BMI. Thirteen years after baseline, 1,273 participants had died. A higher risk of dying was associated with noncorrectable visual impairment, with a stronger association for participants younger than age 75. The analyses "revealed greater effects of noncorrectable visual impairment on mortality risk, with both direct and indirect effects," the authors said. "Of mortality risk markers examined, only disability in walking demonstrated a significant indirect pathway for the link between visual impairment and mortality. "In conclusion, this study reaffirms that visual impairment is associated with an increased risk of all-cause mortality. "Disability in walking may represent an important indirect pathway to mortality for persons with visual impairment, and adjusting for this factor in statistical analysis may overadjust for the indirect effect of visual impairment on mortality risk. The impact of visual impairment on mortality may in fact be greater than that reported from previous studies that have used traditional statistical models,” they added. The study has been published in the October issue of Archives of Ophthalmology, one of the JAMA/Archives journals. ANI
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