NCT06668246

Brief Summary

This study aimed to compare refractive measurements using Vision-S™ 700, an immersive and compact phoropter with a tunable-focus lens, and Vision-R™ 800, a phoropter with a tunable-focus lens without immersion, with cycloplegic refraction serving as the gold-standard. This a retrospective study aimed to enroll 41 children, aged 6 to 16 years, who underwent refractive assessments with Vision-S™ 700, Vision-R™ 800, and cycloplegic refraction. The primary objective involves a comparison of the spherical equivalent between both devices and compared to cycloplegic refraction. Secondary outcomes include the analysis of astigmatism components (J0° and J45°) and subgroup analyses in myopic and hyperopic children.

Trial Health

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Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
41

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Oct 2024

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
active not 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 Start

First participant enrolled

October 1, 2024

Completed
27 days until next milestone

First Submitted

Initial submission to the registry

October 28, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

October 31, 2024

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2025

Completed
Last Updated

November 1, 2024

Status Verified

September 1, 2024

Enrollment Period

6 months

First QC Date

October 28, 2024

Last Update Submit

October 31, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Spherical equivalent

    The primary outcome of this study was to compare the spherical equivalent, obtained using two different devices: Vision-S™ 700, an immersive phoropter with a tunable-focus lens, and Vision-R™ 800, a phoropter with a tunable-focus lens without immersion. The study aimed to assess the overall agreement of these measurements with cycloplegic refraction, considered the gold standard in this context.

    Day 1

Interventions

Eligibility Criteria

Age6 Years - 16 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

6 to 16 years old patients followed in the Brest University Hospital Center, in France, between the 1st of November 2022 and the 30th of April 2023 and requiring a cycloplegic refraction not presenting an exclusion criteria

You may not qualify if:

  • age below 6 years or above 16 years
  • presence of other ophthalmological pathologies rather than ametropia
  • non-French language proficiency, and absence of parental authorization

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Chu Brest

Brest, 29609, France

Location

MeSH Terms

Conditions

Refractive Errors

Interventions

Immersion

Condition Hierarchy (Ancestors)

Eye Diseases

Intervention Hierarchy (Ancestors)

Investigative Techniques

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 28, 2024

First Posted

October 31, 2024

Study Start

October 1, 2024

Primary Completion

March 31, 2025

Study Completion

March 31, 2025

Last Updated

November 1, 2024

Record last verified: 2024-09

Data Sharing

IPD Sharing
Will share

All collected data that underlie results in a publication

Shared Documents
STUDY PROTOCOL
Time Frame
Data will be available beginning three years and ending fifteen years following the final study report completion
Access Criteria
Data access requests will be reviewed by the internal committee of Brest UH. Requestors will be required to sign and complete a data access agreement

Locations