The Immediate Effect of Defocus Spectacles On the Choroid Thickness Using Optical Coherence Tomography on Children
TIDOCT
1 other identifier
interventional
16
1 country
1
Brief Summary
The purpose is to examine temporary changes in the subfoveal choroid thickness after removal and after resumed use of Defocus Incorporated Multiple Segment Spectacle Lenses (DIMS).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Feb 2024
Shorter than P25 for not_applicable
1 active site
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
First Submitted
Initial submission to the registry
January 22, 2024
CompletedFirst Posted
Study publicly available on registry
January 31, 2024
CompletedStudy Start
First participant enrolled
February 1, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 7, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
March 7, 2024
CompletedJune 25, 2025
June 1, 2025
1 month
January 22, 2024
June 18, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Choroidal thickness
Thickness is measured in um
During 60 minutes
Study Arms (1)
Defocus Incorporated Multiple Segment Spectacle Lenses (DIMS)
EXPERIMENTALInterventions
30 minutes without DIMS and 30 minutes with DIMS
Eligibility Criteria
You may qualify if:
- Myopic children using Defocus Incorporated Multiple Segment Spectacle Lenses (DIMS) from the ongoing randomized clinical non-inferiority study: "Defocus Incorporated Multiple Segment (DIMS) Spectacle Lenses versus Orthokeratology lenses (OKL) for slowing myopia progression in children aged 6-12 years. A non-inferiority randomized clinical trial. The NISDO study" (ClinicalTrials.gov Identifier NCT05134935).
You may not qualify if:
- Manifest or intermittent squint.
- Contraindications to the use of OKL comprising (not exhaustive): keratoconus, chronic allergic conjunctivitis, and keratoconjunctivitis sicca.
- Previous eye surgery.
- Chronic eye disease demanding daily use of eye drops.
- Non-compliance to eye examinations (unstable fixation or anxiety towards contact lenses).
- Previous myopia control treatment.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Vejle Hospitallead
Study Sites (1)
The Ophthalmic department, Vejle Hospital
Vejle, Southern Denmark, 7100, Denmark
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Lou-Ann Andersen
Vejle Hospital
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 22, 2024
First Posted
January 31, 2024
Study Start
February 1, 2024
Primary Completion
March 7, 2024
Study Completion
March 7, 2024
Last Updated
June 25, 2025
Record last verified: 2025-06
Data Sharing
- IPD Sharing
- Will not share