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Depth perception
The ability of the vision system to preceive the relative positions of objects in the visual field.
Diabetes mellitus
A chronic metabolic disorder characterized by a lack of insulin secretion and/or increased cellular resistance to insulin, resulting in elevated blood levels of simple sugars (glucose) and including complications involving dama ge to the eyes, kidneys, nervous system and vascular system
Diabetes type I IDDM
Insulin dependent, resulting from destruction of the insulin producing pancreatic islet cells
Diabetes type II NIDDM
Non-insulin dependent, resulting from tissue resistance to insulin
Diplopia
A condition in which a single object is perceived as two; also called double vision.
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