An interventional study of oculomotor training and placebo in Ocular Motility Disorders, sponsored by The Hong Kong Polytechnic University. Completed. Open to participants aged 8 Years to 9 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-08-04.
Sponsored by The Hong Kong Polytechnic University · Not applicable, Interventional, and Treatment
Children with reading eye movement problems were recruited for this study. The treatment group was provided with oculomotor training for 8 weeks, the control group was given placebo exercises.
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.
54 studies on the registry are indexed under Ocular Motility Disorders; 19 are open to participants now.
This study's enrollment of 30 is below the median of 91 across 38 interventional studies indexed under Ocular Motility Disorders.
Browse Ocular Motility Disorders studies →The Hong Kong Polytechnic University is the lead sponsor of 659 studies on the registry; 250 are open to participants now.
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Exclusion criteria:
oculomotor training
Other: oculomotor training
placebo vision training exercises
Other: placebo
a sequence of vision training exercises which focused mainly in oculomotor skill
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
number of fixation and regression is measured by Visagraph per 100 words
Time frame: 8 weeks
Change in reading rate during reading after 8 weeks of oculomotor training
reading rate in number of words/min and fixation duration measured in seconds
Time frame: 8 weeks
Change in perceptual span (words per fixation) during reading after 8 weeks of oculomotor training
perceptual span measured in words per fixation
Time frame: 8 weeks
Change in fixation duration (seconds) during reading after 8 weeks of oculomotor training
fixation duration measured in seconds
Time frame: 8 weeks
Change in symptom scores after 8 weeks of oculomotor training
symptom scores is calculated with a scale of 0 to 4 for all the 8 items of manifested symptoms
Time frame: 8 weeks
No study locations are listed for this record.
Plan to share: No
This study is completed, as verified in Aug 2020. You cannot join it, but the record below documents what was studied.
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The Hong Kong Polytechnic University