You may be wondering why I have chosen to write about the above. The reason is twofold. First and most obviously, the number of people in the UK with Alzheimer's disease is estimated at 850,000 and predicted to rise to over 2 million by 2051. Secondly, both this and other forms of dementia can impact on sight. Early detection is important to try and provide good quality of life after diagnosis and reduce pressure of public and private finances. Detection rates for Alzheimer's