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Study aim
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Evaluation of the effect of orthopthic treatment using major amblyoscope and also active vision therapy using binocular enhancement software and red-green glasses in improving intermittent exotropic control
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Design
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Clinical trial with intervention group using orthopthic exercises and binocular enhancement software and control group with conventional patch therapy treatment, simple randomized, phase 3 on 60 patients
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Settings and conduct
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Khatam Al-Anbia Ophthalmology Hospital, Mashhad
The clinical trial is Superiority, Parallel and one-sided blind
After eye examinations, we sit behind the major amblyoscope and use different slides such as simultaneous perception, flat fusion and fusion.
At home, exercises such as removing suppression aand pencil push up, Practice with 2pencils, Marsen dot, thread and bead are done
With good control after 1month, follow-up for 6 months, and after there was no report of XT, the exercises are slowly reduced
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Participants/Inclusion and exclusion criteria
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- 5- 18 years
Exotropia less than 40 prisms without vertical deviation or pattern
no eye surgery, amblyopia & structural disorders and high refractive errors
Gaining consent of the parents and child cooperation
Grade 2, 3 & 4 on the Mohney and Holms IXT Control Scale
- no cooperation of child
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Intervention groups
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In the intervention group, anti-suppression and fusion therapy exercises are performed by major amblyoscope and binocular enhancement software and red-green glasses
22 sessions and two 20-min sessions per week by an orthopthist.
Playing computer games using filter glasses for 30 min twice a day for 5 days a week for 4 weeks and then 2 days a week for 8 weeks for 3 months
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Main outcome variables
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Intermittent and fusion state exotropic control based on the Mohney and Holmes Intermittent Exotropia Control Scale system evaluates this score before the intervention and then during subsequent follow-up times