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Completed

NCT Number: NCT04901533

Cervical Manipulation (OAA Technique) in Exophories

Objetive: to assess the efficacy of the occipito-atlas-axis cervical manipulation technique to correct ocular divergence in subjects with exophoria.

Design: quantitative, experimental, longitudinal and prospective study.

Subjects: subjects over 18 years of age, with exophorias, without heterotropies and who do not present a contraindication to cervical manipulation.

Methods:Subjects with this ocular mobility dysfunction are going to be evaluated objectively with the Alternate Cover Test. The ocular deviation will be measured at 40 cm and at 4 meters. The individuals who were part of the experimental group underwent the OAA manipulation technique, and to those who were part of the control group a placebo maneuver. Two measurements were taken from this moment, one immediately after the execution of the technique and another one week later.

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Key information

Conditions

Exophoria Central Nervous System Diseases Cranial Nerve Diseases Exotropia Eye Diseases Nervous System Diseases Ocular Motility Disorders Strabismus

Age range

18 year–57 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Lourdes M Fernández-Seguín

Seville, Spain

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Clinical diagnosis of exophoria
  • Being 18 years old.

Exclusion criteria

  • Having heterotropia or have been treated for it.
  • Present contraindication to manipulation (recent fractures, sprains, or dislocations, local tumor, rheumatic polyarthritis, Down syndrome, vertebrobasilar insufficiency, basilar impression, refusal to be manipulated).
  • Having cervical manipulation before two weeks.

Treatment and study plan

O-A-A

Procedure

patient is supine, and the therapist stands on the side to be manipulated. The cranial hand of the therapist globally grasps the patient's skull and turns the patient's neck on that same side. The caudal hand is placed on the patient's face. The technique is performed by an impulse in pure rotation on the side that the cervical region is rotated, with a helical movement.

cranial listening

Procedure

The patient is in the supine position, and the therapist sitting at the head of the patient. The therapist places his hands on the head of the patient, the thumbs touch each other, without touching the vault cranial. A perception of the cranial rhythm is carried out passively.

Primary outcomes

  1. exophoria with cover test at 40 cm

    Time frame: Changes from baseline to moment after intervention

    The exophoria will be evaluated in prismatic diopter.

    Using the cover alternate test, therapist will measure with a prism ruler the diopters that the subject requires to balance eye movement and that the eye does not move from the outside to the inside when looking at an object at 40 cm.

  2. exophoria with cover test al 4 m

    Time frame: Changes from baseline to moment after intervention

    The exophoria will be evaluated in prismatic diopter. Using the cover alternate test, therapist will measure with a prism ruler the diopters that the subject requires to balance eye movement and that the eye does not move from the outside to the inside when looking at an object at 4 meters.

Secondary outcomes

  1. exophoria with cover test at 40 cm (2)

    Time frame: Changes from baseline to 1 week after intervention

    The exophoria will be evaluated in prismatic diopter. Using the cover alternate test, therapist will measure with a prism ruler the diopters that the subject requires to balance eye movement and that the eye does not move from the outside to the inside when looking at an object at 40 cm.

  2. exophoria with cover test al 4 m (2)

    Time frame: Changes from baseline to 1 week after intervention

    The exophoria will be evaluated in prismatic diopter. Using the cover alternate test, therapist will measure with a prism ruler the diopters that the subject requires to balance eye movement and that the eye does not move from the outside to the inside when looking at an object at 4 meters.

Sponsors and collaborators

Lead sponsor

University of Seville

Other

Registry information

Official study title

Effect of Occipito-atlas-axis Manipulation on Oculomotricity in Individuals With Exophories

Important dates

Study start
2021
Primary completion
2021
Study completion
2021
First posted
May 25, 2021
Registry last updated
Nov 10, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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