Visual Acuity Mortality Risk Factor

According to this study, decreased visual acuity increases the risk of mortality in elderly. They study states:

"Worse acuity was associated with a higher mortality rate. Also, those who gained two or more lines of visual acuity over 2 years had a lower risk of dying. Women who lost 3 lines of visual acuity over a 2-year period had a higher risk of dying, whereas men did not. Depressive symptoms did not mediate these relationships."

Not to put any pressure on anybody.