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Computerized color perimetry in multiple sclerosis

Department of Neurological Sciences, Italy

S Rinalduzzi

Department of Neurological Sciences, Italy

M Capozza

Department of Neurological Sciences, Italy

E Millefiorini

Department of Neurological Sciences, Italy

G C Filligoi

Department INFOCOM University of Rome `La Sapienza', Italy

L Capitanio

Department of Neurological Sciences, Italy

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.

Key Words: automatic perimetry • color perimetry • color defects in multiple sclerosis

Multiple Sclerosis, Vol. 4, No. 2, 79-84 (1998)
DOI: 10.1177/135245859800400207


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