Abstract
The study was conducted to answer the following questions: (1) Does computer-based visual restitution training improve the visual field size in patients with prechiasmatic lesions (age of lesion >1 year)? (2) Does this training, which focuses on simple light perception, also improve other aspects of vision such as acuity, form or color perception? The patients were trained for a six-month period with daily PC-based visual training at home for one hour. While the experimental group (n = 10) was trained with a stimulus detection task in the border region located between defective and intact areas, the age-matched control group (n = 9) received pure fixation-training. Results: In the experimental group we found an increase from 203.2 to 312.8 detected stimuli; in the control group from 197.7 to 227.8. On average, the size of the region in which light stimuli could be detected was increased by twenty percent (p < 0.05). Furthermore, acuity values were also significantly increased (p < 0.05) and contrast sensitivity was slightly increased; form and color recognition did not significantly change.
Get full access to this article
View all access options for this article.