NCT06622044

Brief Summary

This is a single-center, randomized controlled clinical trial to compare the effectiveness of vision therapy and prism wearing for the treatment of small-angle acute acquired concomitant esotropia.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
7mo left

Started Sep 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress74%
Sep 2024Dec 2026

Study Start

First participant enrolled

September 7, 2024

Completed
21 days until next milestone

First Submitted

Initial submission to the registry

September 28, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

October 1, 2024

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 7, 2026

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 7, 2026

Last Updated

December 9, 2025

Status Verified

December 1, 2025

Enrollment Period

2 years

First QC Date

September 28, 2024

Last Update Submit

December 2, 2025

Conditions

Keywords

Vision TherapyAcute Acquired Concomitant Esotropia

Outcome Measures

Primary Outcomes (1)

  • Change in deviation angle at distance and near

    the deviation angle measured using the alternate prism cover test

    1 weeks, 4weeks, 12 weeks, 24 weeks

Secondary Outcomes (4)

  • Changes in stereopsis

    1 weeks, 4weeks, 12 weeks, 24 weeks

  • Changes in accommodation facility

    1 weeks, 4weeks, 12 weeks, 24 weeks

  • Changes in accommodation function

    1 weeks, 4weeks, 12 weeks, 24 weeks

  • Change in accommodation convergence to accommodation(AC/A) ratio

    1 weeks, 4weeks, 12 weeks, 24 weeks

Study Arms (2)

Vision therapy group

EXPERIMENTAL

Accommodation facility exercises and divergence exercises

Other: Vision therapy group

Prism group

ACTIVE COMPARATOR

wearing prism glasses

Other: Prism

Interventions

accommodation and vergence exercise

Vision therapy group
PrismOTHER

wearing prism glasses

Prism group

Eligibility Criteria

Age10 Years - 40 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Aged 10-40 years (including 10 years and 40 years);
  • Best-corrected visual acuity no worse than 20/20 for both eyes;
  • Deviation angle less than 15 prism diopters (including 15 prism diopters);

You may not qualify if:

  • Organic eye diseases;
  • Lesions of the brain;
  • Receiving esotropia therapy(including surgery and prism treatment)
  • Devation angle reducing more than 10 prism diopters after refractive correction

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Eye & ENT Hospital of Fudan University

Shanghai, China

RECRUITING

MeSH Terms

Conditions

Esotropia

Interventions

PRDM6, protein, mouse

Condition Hierarchy (Ancestors)

StrabismusOcular Motility DisordersCranial Nerve DiseasesNervous System DiseasesEye Diseases

Central Study Contacts

Shuyang Guo, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 28, 2024

First Posted

October 1, 2024

Study Start

September 7, 2024

Primary Completion (Estimated)

September 7, 2026

Study Completion (Estimated)

December 7, 2026

Last Updated

December 9, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

We concerns about patient privacy issues and it\'s better to protect the publication potential.

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