The visual deficits that may occur in elderly population (e.g. difficulty with smooth pursuits and fixation, reduced contrast sensitivity and colour vision, difficulty with reading and object recognition). Biological, systemic, physiological and pathological changes of different ocular defects. The visual impact of some systemic diseases such as Alzheimer's, Parkinson's and strokes will be reviewed with the appropriate testing methods such as Glare testing, gaze behavior and balance, and quality of life.
