scholarly journals Effects on driving performance of visual field defects: A driving simulator study

1991 ◽  
Vol 23 (4) ◽  
pp. 331-342 ◽  
Author(s):  
Per Lövsund ◽  
Anders Hedin ◽  
Jan Törnros
Keyword(s):  
Visual Field ◽  
Driving Simulator ◽  
Driving Performance ◽  
Visual Field Defects ◽  
Simulator Study ◽  
Field Defects

scholarly journals Driving with Homonymous Visual Field Defects: Driving Performance and Compensatory Gaze Movements

2015 ◽  
Vol 8 (5) ◽  
Author(s):  
Thomas C. Kübler ◽  
Enkelejda Kasneci ◽  
Wolfgang Rosenstiel ◽  
Kathrin Aehling ◽  
Martin Heister ◽  
...  
Keyword(s):  
Visual Field ◽  
Safety Margin ◽  
Driving Performance ◽  
Head Movements ◽  
Visual Field Defects ◽  
Control Group ◽  
Safe Driving ◽  
Lane Position ◽  
Control Group Subject ◽  
Field Defects

Aim of this pilot study was to assess the driving performance and its relationship to the visual search behavior, i.e., eye and head movements, of patients with homonymous visual field defects (HVFDs) in comparison to healthy-sighted subjects during a simulated driving test. Eight HVFD patients and six healthy-sighted age- and gender-matched control subjects underwent a 40-minute driving test with nine hazardous situations. Eye and head movements were recorded during the drive. Four out of eight patients passed the driving test and showed a driving performance similar to that of the control group. One control group subject failed the test. Patients who passed the test showed an increased number of head and eye movements. Patients who failed the test showed a rightwards-bias in average lane position, probably in an attempt to maximize the safety margin to oncoming traffic. Our study supports the hypothesis that a considerable subgroup of subjects with HVFDs show a safe driving behavior, because they adapt their viewing behavior by increased visual scanning.

scholarly journals Central Visual Field Defects in Patients with Distinct Glaucomatous Optic Disc Phenotypes

2021 ◽  
Vol 223 ◽  
pp. 229-240
Author(s):  
Eren Ekici ◽  
Sasan Moghimi ◽  
Huiyuan Hou ◽  
James Proudfoot ◽  
Linda M. Zangwill ◽  
...  
Keyword(s):  
Visual Field ◽  
Optic Disc ◽  
Visual Field Defects ◽  
Central Visual Field ◽  
Field Defects

Computerized color perimetry in multiple sclerosis

1998 ◽  
Vol 4 (2) ◽  
pp. 79-84 ◽  
Author(s):  
N Accornero ◽  
S Rinalduzzi ◽  
M Capozza ◽  
E Millefiorini ◽  
G C Filligoi ◽  
...  
Keyword(s):  
Visual Field ◽  
Statistical Difference ◽  
Cost Effective ◽  
Quantitative Information ◽  
Field Analysis ◽  
Visual Field Defects ◽  
Highly Sensitive ◽  
The Subject ◽  
Color Perimetry ◽  
Field Defects

Color visual field analysis has proven highly sensitive for early visual impairments diagnosis in MS, yet it has never attained widespread popularity usually because the procedure is difficult to standardize, the devices are costly, and the test is fatiguing. We propose a computerized procedure running on standard PC, cost effective, clonable, and easy handled. Two hundred and sixty-four colored patches subtending 18 angle of vision, with selected hues and low saturation levels are sequentially and randomly displayed on gray equiluminous background of the PC screen subtending 2486408 angle of vision. The subject is requested to press a switch at the perception of the stimulus. The output provides colored maps with quantitative information. Comparison between normals and a selected population of MS patients with no actual luminance visual field defects, showed high statistical difference.

Sign in / Sign up

Export Citation Format

Share Document