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Neurovisual rehabilitation in cerebral blindness
G Kerkhoff1, U Münssinger, E K Meier
1EKN Entwicklungsgruppe Klinische Neuropsychologie, City Hospital Bogenhausen, Munich, Germany.
Archives of Neurology
|May 1, 1994
Summary
This study shows that training saccadic eye movements effectively improves visual field recovery and functional abilities in hemianopic patients. The therapy leads to significant visual field expansion and enhanced daily living activities.
Area of Science:
- Neuroscience
- Ophthalmology
- Rehabilitation Medicine
Background:
- Hemianopia, a visual field defect, significantly impacts daily functioning.
- Compensatory eye movement strategies are crucial for navigating visual impairments.
Purpose of the Study:
- To evaluate the efficacy of systematic saccadic eye movement training in hemianopic patients.
- To assess visual field recovery, functional outcome transfer, and subjective patient experience.
Main Methods:
- A within-subject repeated measures design was used with 22 hemianopic patients.
- Intervention involved daily 30-minute saccadic eye movement training sessions over 25-27 days.
- Outcomes measured included visual perimetry, visual search, table test performance, and subjective visual impairment ratings.
Main Results:
- Significant visual field expansion (mean 30 degrees) and training-related increases in 54% of patients (mean 6.7 degrees).
- Treatment gains transferred to functional measures (table test) and improved subjective ratings.
- Improvements were stable at 3-month follow-up, with 91% returning to part-time work.
Conclusions:
- Saccadic eye movement training restores oculomotor function and enhances visual field recovery.
- The therapy improves functional visual activities and patient reintegration into vocational life.
- This training offers a viable strategy for managing hemianopia.