And of course the image of a man exiting through a door, represents a man exiting through a door. Whereas three dots - well - represents three dots. Posted 56 months ago. ( permalink) Ciaran Laval says: Scarlet Pimpernel: It took me a while to learn what this UK sign means.
Blind loop syndrome. Blind loop syndrome: Introduction. Blind loop syndrome: A rare intestinal defect where there is a small loop in the intestines that allow digesting material to enter but not exit. The symptoms are variable depending on the size and location of the pouch.
The natural blind spot (scotoma) is due to lack of receptors (rods or cones) where the optic nerve and blood vessels leave the eye. There can also be artificial blind spots when something blocks light from reaching the photoreceptors, or when there is local adaptation of the retina as just after seeing a bright light. Blindness is absence of seeing.