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

> **NCT00785135** · NA · TERMINATED · sponsor: **Vision Specialists of Birmingham** · enrollment: 13 (actual)

## Conditions studied

- Binocular Dysfunction
- Vertical Heterophoria
- Vision, Binocular
- Vision Disparity

## Interventions

- **DEVICE:** Lenses containing prismatic correction
- **DEVICE:** Lenses not containing prismatic correction

## Key facts

- **NCT ID:** NCT00785135
- **Lead sponsor:** Vision Specialists of Birmingham
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2008-11
- **Primary completion:** 2015-11
- **Final completion:** 2015-11
- **Target enrollment:** 13 (ACTUAL)
- **Why stopped:** Unable to recruit - multiple reasons.- inclusion/exclusion criteria too strict was th emain reason.
- **Last updated:** 2020-10-12

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00785135

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00785135, "Effects of Prismatic Spectacle Lenses on Symptoms of Dizziness, Headache and Anxiety as Caused by Vertical Heterophoria". Retrieved via AI Analytics 2026-08-01 from https://api.ai-analytics.org/clinical/NCT00785135. Licensed CC0.

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