Visually evoked cortical potentials in the evaluation of homonymous and bitemporal visual field defects.
Br J Ophthalmol
; 60(4): 273-8, 1976 Apr.
Article
in En
| MEDLINE
| ID: mdl-1276115
ABSTRACT
Visually evoked cortical potentials were studied in six patients with a homonymous and six with a bitemporal hemianopia by presenting a pattern-reversal stimulus separately to a temporal or nasal retinal area and by recording the responses from leads over the hemispheres. Homonymous visual field defects are characterized by a reduction of VECPs from the affected hemisphere. The disturbance of VECPs in bitemporal hemianopia is more serious, since the fibres from both retinal halves may be damaged by a chiasm tumour.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Visual Cortex
/
Hemianopsia
Limits:
Humans
/
Middle aged
Language:
En
Journal:
Br J Ophthalmol
Year:
1976
Document type:
Article