NCT07698977

Brief Summary

This observational study aims to determine whether optical devices designed to slow myopia progression and/or environmental factors can prevent myopia progression in the pediatric and adolescent myopic population. The study aims to answer the following questions:

  • Best corrected visual acuity test
  • Stereopsis
  • Automatic refractometry
  • Bulbar axial length measurement In a follow-up study, researchers will compare myopia progression with environmental and baseline factors to learn about the long-term effects of DIMS lenses on myopia progression.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
50

participants targeted

Target at P25-P50 for all trials

Timeline
10mo left

Started Jun 2026

Shorter than P25 for all trials

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 Progress17%
Jun 2026May 2027

Study Start

First participant enrolled

June 2, 2026

Completed
25 days until next milestone

First Submitted

Initial submission to the registry

June 27, 2026

Completed
16 days until next milestone

First Posted

Study publicly available on registry

July 13, 2026

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2027

Last Updated

July 13, 2026

Status Verified

July 1, 2026

Enrollment Period

12 months

First QC Date

June 27, 2026

Last Update Submit

July 7, 2026

Conditions

Keywords

myopiamyopia progressionoptical deviceDIMS lensesbulbar axial length

Outcome Measures

Primary Outcomes (2)

  • Best corrected visual acuity test

    Zero is equivalent to no vision and 1.0 indicates the best visual acuity in decimal scale. Distance and near visual acuity is measured under standard conditions

    up to 24 week

  • Bulbar axial length measurement

    It is defined as the distance from the anterior surface of the cornea to the retinal pigment epithelium, measured in millimeters using optical device. An increase in axial length is characteristic of the elongation of the eye.

    up to 24 week

Secondary Outcomes (1)

  • Stereopsis

    up to 24 week

Study Arms (1)

Myopic cohort

Inclusion Criteria: * Participants must be between 6 and 15 years of age at the start of myopia progression treatment * Caucasian ethnicity * Refractive error measured under cycloplegia, expressed as spherical equivalent: between -0.50 Dsph and -10.0 Dsph * Wearing myopia-control glasses while awake * Participation in follow-up examinations every 6 months Exclusion criteria: * Pathological myopia (e.g., myopia onset before age 6, Stickler syndrome) * Premature birth before the 32nd week of gestation * Previous eye-opening surgery (e.g., lens removal) * Traumatic eye injury * Known connective tissue disorder (e.g., Marfan syndrome) * Irregular or improper use of progressive-lens glasses * Failure to attend the follow-up examinations scheduled every 6 months

Device: Wearing myopia-control D.I.M.S. glasses while awakeDevice: DIMS (Defocus Incorporated Multiple Segments) lenses

Interventions

DIMS (Defocus Incorporated Multiple Segments) lenses wearing while awake

Myopic cohort

D.I.M.S. lenses are worn like normal glasses to correct myopia and, beyond that, their special design is intended to slow myopia progression via defocus lenslets. There is targeted myopic defocus produced by the mid-peripheral lenslets with positive power to inhibit eye length growth.

Myopic cohort

Eligibility Criteria

Age6 Years - 15 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)
Sampling MethodProbability Sample
Study Population

Participants (between 6 and 15 years of age) are wearing myopia progression treatment , namely D.I.M.S. lenses while they are awake. The wear these glasses to correct refractive error and to slow down myopia progression. At enrollment the refractive error measured under cycloplegia, expressed as spherical equivalent must be: between -0.50 Dsph and -10.0 Dsph.

You may qualify if:

  • Participants must be between 6 and 15 years of age at the start of myopia progression treatment
  • Caucasian ethnicity
  • Refractive error measured under cycloplegia, expressed as spherical equivalent: between -0.50 Dsph and -10.0 Dsph
  • Wearing myopia-control glasses while awake
  • Participation in follow-up examinations every 6 months

You may not qualify if:

  • Pathological myopia (e.g., myopia onset before age 6, Stickler syndrome)
  • Premature birth before the 32nd week of gestation
  • Previous eye-opening surgery (e.g., lens removal)
  • Traumatic eye injury
  • Known connective tissue disorder (e.g., Marfan syndrome)
  • Irregular or improper use of progressive-lens glasses
  • Failure to attend the follow-up examinations scheduled every 6 months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Semmelweis University Ophthalmology Department

Budapest, 1085, Hungary

RECRUITING

MeSH Terms

Conditions

Myopia

Interventions

Lenses

Condition Hierarchy (Ancestors)

Refractive ErrorsEye Diseases

Intervention Hierarchy (Ancestors)

Optical DevicesEquipment and Supplies

Study Officials

  • Zoltan Zs Nagy, Professor

    Semmelweis University Ophthalmology Department

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Zoltan Zs Nagy, Professor

CONTACT

Amarilla Barcsay-Veres

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigatorr

Study Record Dates

First Submitted

June 27, 2026

First Posted

July 13, 2026

Study Start

June 2, 2026

Primary Completion (Estimated)

May 31, 2027

Study Completion (Estimated)

May 31, 2027

Last Updated

July 13, 2026

Record last verified: 2026-07

Locations