An early indicator of dementia can be spotted in the eyes, scientists have said. Many of us are aware of some of the more common symptoms of the devastating condition, which include memory loss and behavioural changes. But some of the lesser known signs can appear in unlikely places - including in the eyes. More specifically, this symptom can affect people with Alzheimer’s disease, which is the most common form of dementia. Involuntary eye movements known as saccades are slower in those with