Today's Health Links November 28, 2013

Buildup of amyloid in brain blood vessels promotes early cognitive impairment
A team of researchers has discovered in a model of Alzheimer’s disease that early accumulation of a small protein, known as amyloid β, in the blood vessels of the brain can drive early cognitive impairment.
For many older adults, vision prescription differs between eyes
Follow-up in older adults shows a high rate of anisometropia, or differing levels of visual abnormalities between eyes, reports a study.