Actively Recruiting
Radiographic Head and Neck Positional Changes in Response to Usage of Low-powered Prismatic Lenses
Led by Lisbon Academic Medical Center - Centro Académico de Medicina de Lisboa · Updated on 2026-04-16
20
Participants Needed
1
Research Sites
165 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
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.
CONDITIONS
Official Title
Radiographic Head and Neck Positional Changes in Response to Usage of Low-powered Prismatic Lenses
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Presentation of diagnostic criteria for Postural Deficiency Syndrome including:
- 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
You will not qualify if you...
- 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
- Treatment for postural and movement disorders in the previous year
AI-Screening
AI-Powered Screening
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Trial Site Locations
Total: 1 location
1
CAML
Lisbon, Lisbon District, Portugal
Actively Recruiting
Research Team
J
João Alves da Silva, MD
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NA
Model
SINGLE_GROUP
Primary Purpose
BASIC_SCIENCE
Number of Arms
1
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