Glossary
Blind-sight:
The ability to respond to certain visual stimuli within a
perceptually blind area of visual field.
Homonymous hemianopia:
Loss of half of the field of vision to one side in each eye.
Monocular vision:
vision in one eye only.
Peripheral vision:
field of vision out to both sides.
Prism:
Optical plastic membrane which displaces images which are
viewed through the prism.
Quadrantanopia:
Loss of a quarter of the field of vision.
Scotoma:
isolated area of visual field loss.
Visual field: the whole of vision from straight ahead to
the periphery (outwards).
Visual impairment: vision loss resulting in a limitation
of visual capability.
Visual scanning: training that encourages an individual
to systematically look to the right and left sides.