RecruitingNot ApplicableNCT07532642

Radiographic Head and Neck Positional Changes in Response to Usage of Low-powered Prismatic Lenses

Radiographic Head and Neck Positional Changes in Response to Oculomotor Muscles Tonic Modification Using Low-powered Prismatic Lenses


Sponsor

Lisbon Academic Medical Center - Centro Académico de Medicina de Lisboa

Enrollment

20 participants

Start Date

Mar 27, 2023

Study Type

INTERVENTIONAL

Conditions

Summary

This study aims to investigate the short-term modifications in head and neck positioning by usage of low-powered prismatic lenses in patients with Postural Deficiency Syndrome (PDS). A matched pair observation study was designed. Evaluation is carried out using low dose biplanar radiography before treatment and 15 minutes after lenses application.


Eligibility

Min Age: 18 Years

Inclusion Criteria4

  • Presentation of diagnostic criteria for Postural Deficiency Syndrome comprising of
  • Two or more cardinal signs of Postural Deficiency Syndrome
  • Clinical presentation of asymmetrical stance and head extension and rotation
  • Presence of typical directional pseudoscotoma described in this syndrome

Exclusion Criteria5

  • Vision under 8/10, strabismus or nistagmus;
  • Previous eye or vestibular surgery;
  • Known disease affecting the central nervous system or inner ear;
  • Medication with known interference with balance and posture and
  • treatment for postural and movement disorders in the previous year.

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Interventions

DEVICEPrismatic low-powered lenses

Participants perform biplanar X-ray before and after lens application


Locations(1)

CAML

Lisbon, Lisbon District, Portugal

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NCT07532642