Simple regular eye tests could be used to identify Alzheimer's disease at a very early stage. Early trials of two different techniques show that a key biomarker for the disease can be identified in the retina and lens of the eye.
[link url=http://www.telegraph.co.uk/health/healthnews/10964472/Eye-tests-could-spot-early-Alzheimers-disease.html]Full report in The Telegraph[/link]