Reading training for people with hemianopia (loss of one-half of the visual field)

Not Applicable

Completed

• Conditions: Homonymous visual field defects after post-chiasmatic acquired brain injury; Eye Diseases; Visual field defects

• Registration Number: ISRCTN85915866
• Lead Sponsor: niversity of Groningen

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2022-09-15
• Study Completion: 2023-07-31
• Last Update Posted: 15 April 2024

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 24

Inclusion Criteria

1. Homonymous visual field defect (at least a quadrantanopia, either right-sided or left-sided) due to acquired post-chiasmatic brain injury
2. At least 3 months between onset homonymous visual field defect (HVFD) and the first measurement
3. Near visual acuity =0.5 with patient’s own current correction
4. Mini-mental state examination (MMSE) score =24
5. Age =18 years
6. Presence of by participant formulated treatment goal regarding reading

Updated 03/04/2024:
An amendment was approved on 21/03/2023 where inclusion criterium 6 was dropped for participants who wanted to participate in the control group.

Exclusion Criteria

A subject who meets any of the following criteria will be excluded from participation in this study:
1. Additional visual field defect (at least cluster) in ipsilesional visual hemi-field
2. Pre-existing dyslexia/illiteracy/low literacy/other pre-morbid reading problems
3. No clear neurological cause of HVFD
4. Presence of comorbid neglect

The following criteria are made on the premise that, when present, they will impair the ability to successfully follow the intervention:
5. Communication difficulties (e.g. severe hearing impairment, no fluent understanding of the Dutch language, severe aphasia as indicated by the Token test)
6. Negative advice of treatment team regarding reading intervention participation, due to e.g. severe psychiatric, cognitive or visual perception disorders, problems with health, motivation or illness awareness or misuse of drugs/alcohol/medication
7. Additional visual disturbances (e.g. diplopia, metamorphopsia, low contrast sensitivity)

Study & Design

• Study Type: Interventional
• Study Design: Not specified