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Effectiveness of Osteopathy as an Adjunct to Optometric Vision Therapy in Vergence Disorders
Sponsor: Jordi Zaragoza
Summary
Vergence disorders are common binocular vision conditions that can cause symptoms such as eyestrain, blurred vision, headaches, and difficulty maintaining clear vision during near tasks. These symptoms are particularly frequent in situations involving sustained near visual demand, such as prolonged use of digital devices, which is increasingly common in daily life. Optometric vision therapy is considered the reference treatment for vergence disorders. However, not all individuals respond in the same way, and some continue to experience symptoms despite appropriate treatment. For this reason, adjunct therapeutic approaches are being explored to improve clinical outcomes. The purpose of this study is to evaluate whether osteopathic manual therapy, when used as an adjunct to optometric vision therapy, provides additional benefits compared with vision therapy alone or vision therapy combined with a sham osteopathic intervention. This randomized, controlled, double-blind clinical trial will compare three parallel groups and will assess changes in vergence function, oculomotor performance measured by video-oculography, and symptom improvement related to vergence disorders.
Official title: Effectiveness of Osteopathy as an Adjunct to Optometric Vision Therapy in Subjects With Vergence Disorders: A Randomized, Double-Blind, Controlled Clinical Trial
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
100
Start Date
2026-04
Completion Date
2027-02
Last Updated
2026-03-25
Healthy Volunteers
No
Interventions
Optometric Vision Therapy
Structured optometric vision therapy program consisting of in-office and home-based visual exercises aimed at improving binocular vision and vergence function. The intervention is standardized across participants and delivered by qualified optometrists following a predefined protocol.
Osteopathic Manual Therapy
Standardized manual osteopathic intervention delivered as an adjunct to optometric vision therapy. The intervention consists of predefined manual techniques targeting somatic dysfunctions potentially related to binocular vision and vergence, applied according to a fixed protocol and session schedule. The intervention protocol is predefined and documented in detail to ensure consistency across participants.
Sham Osteopathic Intervention
Sham manual intervention designed to mimic the context, duration, and therapist-participant interaction of the osteopathic intervention without applying therapeutic osteopathic techniques. The procedure is standardized and intended to maintain participant blinding.
Locations (1)
Jordi Zaragoza osteopatia
Andorra la Vella, Andorra, Andorra