Trial reportPloS one2015
The Effects of Compensatory Scanning Training on Mobility in Patients with Homonymous Visual Field Defects: A Randomized Controlled Trial.
Trial report in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 38 papers, 6 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
38 citing papers in PubMed, 6 syntheses or guidelines pooled it, 64 citations in OpenAlex.
- Reading Difficulties in Individuals with Homonymous Visual Field Defects: A Systematic Review of Reported Interventions.Neuropsychology review · 2025Pooled it
- Environmental and behavioural interventions for reducing physical activity limitation and preventing falls in older people with visual impairment.The Cochrane database of systematic reviews · 2020Pooled it
- Low vision rehabilitation for better quality of life in visually impaired adults.The Cochrane database of systematic reviews · 2020Pooled it
- Interventions for visual field defects in people with stroke.The Cochrane database of systematic reviews · 2019Pooled it
- Adaptation to poststroke visual field loss: A systematic review.Brain and behavior · 2018Pooled it
- Occupational Therapy Interventions to Improve Reading Performance of Older Adults With Low Vision: A Systematic Review.The American journal of occupational therapy : official publication of the American Occupational Therapy AssociationPooled it
- Reinforcement-Based Head Scan Training for Drivers With Homonymous Visual Field Loss: Improves Blind-Side Detection.Archives of physical medicine and rehabilitation · 2026Trial
- Visual processing speed in hemianopia patients secondary to acquired brain injury: a new assessment methodology.Journal of neuroengineering and rehabilitation · 2020Trial
- Trial
- Where you didn't look: Perimetry based on the analysis of free-viewing gaze behavior while watching movie clips.Journal of vision · 2026Article
- Interventions for Visual Field Loss After Acquired Brain Injury: A Systematic Review.Life (Basel, Switzerland) · 2026Review
- Virtual street crossing and scanning behavior in people with hemianopia: A step toward successful crossings.Journal of vision · 2025Article
- Nuances in visual rehabilitation after pituitary surgery.Neuro-oncology advances · 2025Article
- Cycling with hemianopia to explore road user detection and scanning behaviour in virtual reality.Scientific reports · 2025Article
- Brain tumors and fitness to drive: A review and multi-disciplinary approach.Neuro-oncology practice · 2025Review
- Reduced field of view alters scanning behaviour.Virtual reality · 2025Article
- Customized Visual Discrimination Digital Therapy According to Visual Field Defects in Chronic Stroke Patients.Journal of clinical neurology (Seoul, Korea) · 2024Article
- Gaze Scanning on Mid-Block Sidewalks by Pedestrians With Homonymous Hemianopia With or Without Spatial Neglect.Investigative ophthalmology & visual science · 2024Article
- Gaze Scanning at Street Crossings by Pedestrians With Homonymous Hemianopia With and Without Hemispatial Neglect.Investigative ophthalmology & visual science · 2023Article
- Visual Field Loss: Integrating Overlayed Information to Increase the Effective Field of View.Vision (Basel, Switzerland) · 2022Article
Corrections and comments
- Erratum issued
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionHomonymous visual field defects (HVFD) are a common consequence of postchiasmatic acquired brain injury and often lead to mobility-related difficulties. Different types of compensatory scanning training have been developed, aimed at decreasing consequences of the HVFD by changing visual scanning.
aimThe aim of the present study is to examine the effects of a compensatory scanning training program using horizontal scanning on mobility-related activities and participation in daily life.
methodThe main interest of this study is to assess the effectiveness of training on mobility-related activities and participation in daily life. Visual scanning tests, such as dot counting and visual search, and control measures for visual functions and reading have been included as well. First, it is examined how performance on scanning and mobility-related measures is affected in patients with HVFD by comparing scores with scores of a healthy control group (n = 25). Second, the effect of training is assessed using an RCT design, in which performance of 26 patients before and after training is compared to performance of 23 patients in a waiting list control group.
resultsSelf-reported improvements after training were found, accompanied by improvements in detecting peripheral stimuli and avoiding obstacles during walking, especially in dual task situations in which a second task limits the attentional capacity available for compensatory scanning. Training only improved mobility-related activities in which detection of peripheral stimuli is important, while no improvement was found on tests that require other visual skills, such as reading, visual counting and visual search.
conclusionThis is the first RCT to evaluate the effects of a compensatory scanning training that is based on a systematic horizontal scanning rhythm. This training improved mobility-related activities. The results suggest that different types of compensatory scanning strategies are appropriate for different types of activities.
trial registrationISRCTN Registry ISRCTN16833414.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.