Oculomotor Training Improves Reading Eye Movement
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|ClinicalTrials.gov Identifier: NCT02981875|
Recruitment Status : Completed
First Posted : December 5, 2016
Last Update Posted : August 4, 2020
|Condition or disease||Intervention/treatment||Phase|
|Ocular Motility Disorders||Other: oculomotor training Other: placebo||Not Applicable|
Purpose of study Reading is one of the integral elements for learning and poor readers were reported to have less efficient reading eye movements. They were typically characterized by having higher number in fixation and regression, reduced reading speed and perceptual span. The purpose of this study was to investigate if vision therapy which limited to training of oculomotor skills can improve reading eye movement.
Methodology This was a randomized, prospective study. 30 subjects aged from 8-9 years of age with reading difficulties and reading eye movement problems were recruited. They all have normal intelligence and ocular health, but failed to meet the Taylor reading eye movement norms when tested with the Visagraph III. The subjects were randomly assigned into either the treatment group (15) or the control group (15). The treatment group had to go through a course of oculomotor vision therapy and the control group was given placebo exercises. Vision therapy for the treatment group involved 8 weeks of training (office training - 3 times a week, 30 min per session; home training - 4 times a week, 30 min per session). Office training involved the use of Vis-Flex (Visual Flexibility Trainer - an electronic device with L.E.D. lights which can display various flashing patterns at variable speeds). Home training involved several saccadic eye movement exercises. Subjects and parents were also asked to grade the reading symptoms checklist before and after the training.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||30 participants|
|Intervention Model:||Parallel Assignment|
|Official Title:||Oculomotor Training Improves Reading Eye Movement|
|Actual Study Start Date :||January 1, 2015|
|Actual Primary Completion Date :||September 30, 2016|
|Actual Study Completion Date :||September 30, 2019|
Other: oculomotor training
a sequence of vision training exercises which focused mainly in oculomotor skill
Placebo Comparator: control
placebo vision training exercises
placebo vision training exercises involving minimal accommodation and vergence eye movement.
- Change in number of fixation and regression during reading after 8 weeks of oculomotor training [ Time Frame: 8 weeks ]number of fixation and regression is measured by Visagraph per 100 words
- Change in reading rate during reading after 8 weeks of oculomotor training [ Time Frame: 8 weeks ]reading rate in number of words/min and fixation duration measured in seconds
- Change in perceptual span (words per fixation) during reading after 8 weeks of oculomotor training [ Time Frame: 8 weeks ]perceptual span measured in words per fixation
- Change in fixation duration (seconds) during reading after 8 weeks of oculomotor training [ Time Frame: 8 weeks ]fixation duration measured in seconds
- Change in symptom scores after 8 weeks of oculomotor training [ Time Frame: 8 weeks ]symptom scores is calculated with a scale of 0 to 4 for all the 8 items of manifested symptoms
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02981875
|Principal Investigator:||Carly SY Lam||The Hong Kong Polytechnic University|