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Updated: Jul 5, 2026

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss
Published on: April 11, 2025
Long-term learning of visual functions in patients after brain damage
Iris Mueller1, Carolin Gall, Erich Kasten
1Institute of Medical Psychology, Medical Faculty, Otto-von-Guericke University of Magdeburg, Leipziger Str. 44, D-39120 Magdeburg, Germany. Iris.Mueller@med.ovgu.de
Intensive vision restoration training for 12 months showed minimal additional benefits for detecting above-threshold stimuli in patients with visual-field defects. However, near-threshold testing indicated peripheral visual field improvements with extended training.
Area of Science:
- Neuroscience
- Ophthalmology
- Rehabilitation Medicine
Background:
- Vision restoration training (VRT) aids patients with visual-field defects from brain damage.
- Current VRT protocols involve training up to 6 months.
Purpose of the Study:
- To investigate if extending VRT to 12 months enhances visual detection abilities.
- To compare the efficacy of 6-month versus 12-month VRT.
Main Methods:
- Retrospective study comparing 17 patients undergoing 12 months of VRT with a 6-month training group.
- Computer-based home training with approximately 195,000 stimuli (6 months) or 390,000 stimuli (12 months).
- Visual fields assessed using Rodenstock Perimat 206 and high-resolution perimetry (HRP) at baseline, 6 months, and 12 months.
Main Results:
- Near-threshold perimetry showed marginal improvements beyond 6 months (3.5% right eye, 1.5% left eye).
- Above-threshold testing revealed no significant benefits from training beyond 6 months (0.8% improvement).
Conclusions:
- Visual detection of above-threshold stimuli in post-retinal lesions plateaus after 6 months of VRT.
- Long-term VRT (12 months) may benefit peripheral visual field areas not directly trained, as suggested by near-threshold testing.
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