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Effects of Prismatic Spectacle Lenses on Symptoms of Dizziness, Headache and Anxiety as Caused by Vertical Heterophoria

NCT00785135 · Status: TERMINATED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 13

Last updated 2020-10-12

No results posted yet for this study

Summary

The purpose of this study is to demonstrate whether, in patients diagnosed with Vertical Heterophoria, the symptoms of dizziness, headache and / or anxiety are reduced or eliminated when a kind of correction called vertical prism is added to the patient's normal eye glass prescription.

The experiment will involve giving the patient two pairs of glasses (one pair containing the baseline prescription with vertical prism (Standard Treatment Glasses) and the other pair containing the baseline prescription but without vertical prism (Placebo Glasses)) to demonstrate which pair of glasses is most effective in reducing the symptoms of dizziness, headache and / or anxiety in these patients.

Conditions

  • Binocular Dysfunction
  • Vertical Heterophoria
  • Vision, Binocular
  • Vision Disparity

Interventions

DEVICE

Lenses containing prismatic correction

The patient will receive lenses containing prismatic correction for heterophoria, as well as correction for hyperopia, myopia and astigmatism as indicated during initial examination.

DEVICE

Lenses not containing prismatic correction

The patient will receive lenses containing correction for hyperopia, myopia and astigmatism as indicated during initial examination. The patient will not receive prismatic correction in these lenses.

Sponsors & Collaborators

  • Essilor International

    collaborator INDUSTRY

  • Vision Specialists of Birmingham

    lead OTHER

Principal Investigators

  • Mark S Rosner, MD · Vision Specialists of Birmingham

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
14 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2008-11-30
Primary Completion
2015-11-30
Completion
2015-11-30

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00785135 on ClinicalTrials.gov