Compensatory reading training for people with homonymous visual field defects

Completed

Conditions: halfsided blindness
Partial cortical blindness
10029301

Registration Number: NL-OMON51525

Lead Sponsor: Rijksuniversiteit Groningen

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Completed

Sex: Not specified

Target Recruitment: 135

Inclusion Criteria

In order to be eligible to participate in this study, a subject must meet all
of the following criteria:
* Homonymous visual field defect (at least a quadrantanopia, either right-sided
or left-sided) due to acquired post-chiasmatic brain injury
* At least three months between onset HVFD and the first measurement
* Near visual acuity >= 0.5 with patient*s own current correction
* MMSE score >=24
* Age >= 18 years
* Presence of by patient formulated treatment goal regarding reading

Exclusion Criteria

A subject who meets any of the following criteria will be excluded from
participation in this study:
* Additional visual field defect (at least cluster) in ipsilesional visual
hemi-field
* Pre-existing dyslexia/ illiteracy/ low literacy/ other pre-morbid reading
problems
* No clear neurological cause of HVFD
* Presence of comorbid neglect
The following criteria are made on the premise that, when present, they will
impair the ability to successfully followthe intervention:
* Communication difficulties (e.g. severe hearing impairment, no fluent
understanding of Dutch language, severeaphasia as indicated by the Token test)
* 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
ofdrugs/alcohol/medication
* Additional visual disturbances (e.g. diplopia, metamorphopsia, low contrast
sensitivity)

Study & Design

Study Type: Interventional

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>The primary outcome measures of this study reflect reading performance as well<br /><br>as perceived reading performance: Words per minute read out loud (((number of<br /><br>words read-number of errors)/time [s]) x 60), Number of reading errors, Words<br /><br>per minute read silently ((number of words in paragraph/time [s]) x 60),<br /><br>Subjective report on reading behavior and participation (index scores),<br /><br>Subjective report on reading difficulties.</p><br>

Secondary Outcome Measures

Name	Time	Method
<p>Vision-related quality of life questionnaire, Fatigue questionnaire, Training<br /><br>motivation, Reading history, Education,Sustained attention task, Working memory<br /><br>task, Long-term memory task, Executive functioning task</p><br>