Additive effect of defocus incorporated multiple segments (DIMS) spectacles to low dose atropine for myopic control in children

Status

Recruiting

Phases

Phase 4

Study type

Interventional

Source

TCTR

Registry ID

TCTR20251209014

Enrollment

Registered

2025-12-09

Start date

2024-09-24

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

myopia progrssion Defocus incorporated multiple segments (DIMS) spectacles, myopia, myopia progression, myopia control, atropine, Pediatrics, Randomized controlled trial

Interventions

The DIMS lens is a custom made plastic spectacle lens.It comprises a central optical zone for correcting distance refractive errors, and an annular multiple focal zone with multiple segments having a

Experimental Device,No Intervention Drug

DIMS and Atropine,Atropine

Eligibility

Sex/Gender

All

Age

6 Years to 18 Years

Inclusion criteria

Inclusion criteria: 1 Asian ethnicity 2 Myopia SER -0.50 to -6.00 D from cycloplegic autorefraction spherical equivalent 3 refraction (SER) 4 Astigmatism less than 2.0 D from cycloplegic autorefraction spherical equivalent refraction (SER) 5 Anisometropia less than 1.25D from cycloplegic autorefraction spherical equivalent refraction 6 Myopia progressionmore than 0.50 D per year from cycloplegic autorefraction spherical equivalent refraction (SER)

Exclusion criteria

Exclusion criteria: 1 Ocular and systemic diseases 2 Prior treatment of myopic control

Design outcomes

Primary

Measure	Time frame
change SER at 6 and 12 months Nidek ARK-1a model,change AL at 6 and 12 months IOL master 700	—

Secondary

Measure	Time frame
safety profile at 6 and 12 month questionnaire	—

Countries

Thailand

Contacts

Public ContactSuwasa Lodarbchai

King Chulalongkorn Memorial Hospital

suwasa20@gmail.com022564000

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026