A computerized perimeter for assessing modality-specific visual field loss
Files
Accepted manuscript
Date
2011-01-01
Authors
Calabro, Finnegan J.
Vaina, Lucia M.
Version
Accepted manuscript
OA Version
Citation
Finnegan J Calabro, Lucia M Vaina. 2011. "A computerized perimeter for assessing modality-specific visual field loss." 2011 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC), pp. 2025 - 2028 (4).
Abstract
The characterization of visual field loss provides a valuable diagnostic metric for studying the
effects of damage to the retina, optic nerve or visual cortex. We describe a tool, the Quadrant
Vision Perimeter (QVp), to rapidly and accurately measure visual fields. In addition to measuring
the location of visual deficits, the tool can assess modality-specific field loss (e.g., impaired
detection of luminance, motion, depth and color) and severity of the deficit. We present validation
and normalization for parameters of visual attributes, as well as exemplar comparisons of visual
fields obtained automatically using QVp to standardized perimeters for three stroke patients.
Patient visual fields are compared among visual features to assess modality-specific deficits, and
over time, to measure fine changes in visual fields, due either to spontaneous recovery or visual
degradation.
Description
"Published in final edited form as: Conf Proc IEEE Eng Med Biol Soc. 2011 ; 2011: 1129–1132. doi:10.1109/IEMBS.2011.6090264."