Does VRT Change Absolute Homonymous Visual Field Defects - A Fundus-Controlled Study

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The goal of the study was to examine whether visual restitution training (VRT) is able to change absolute homonymous field defect, assessed with fundus-controlled microperimetry, in patients with hemianopia.

Seventeen patients with stable homonymous visual field defects before and after a six month VRT period were investigated with a specialized microperimetric method using a scanner laser ophthalmoscope (SLO). Fixation was controlled by SLO fundus monitoring.

The conclusions were that in one patient, a slight, non-homonymous improvement along the horizontal meridian was found in one eye. In none of the patients was an explicit homonymous change of the absolute field defect border observed after training.

British Journal of Ophthalmology, 2005; 89:30-35