ClinicalTrials.gg
CompletedNCT07780851Updated Aug 24, 2026

Wearing Behavior and Eye Length Changes in Children With Myopia Wearing Myopia Control Spectacle Lenses

An interventional study of Single Vision Lens (SVL) and Myopia Control Lens (MCL) in Myopia, sponsored by Essilor International. Completed at 1 site in Singapore. Open to participants aged 8 Years to 15 Years. Per ClinicalTrials.gov, last updated 2026-08-24.

Sponsored by Essilor International · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 4 months after the study started (first participant enrolled Apr 2025, registered Aug 2026).

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Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
8 Years to 15 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 28 studies in Myopia by EssilorLuxottica — 14 open to participants now, 19 under way, none of them phase 3. Myopia · EssilorLuxottica.

Enrollment
23rd of 28
20 · median 52
Started
2025
with 8 others
No phase
28 of 28
14 open now
Registered
25th of 28
by date

Among the 28 studies in Myopia by EssilorLuxottica, this one is the 23rd largest by enrollment, is one of 9 that started in 2025, is one of 28 with no phase, and was the 25th registered.

Myopia

1,160 studies on the registry are indexed under Myopia; 226 are open to participants now.

Browse Myopia studies →

Open to participants now

14 of the 28 studies in Myopia by EssilorLuxottica are open now, in 5 countries. Recruiting first, the newest first:

9 more — sign in →

By country, each count listing its studies:

All 14 open studies →

Who these studies take

Of the 122 Myopia studies recruiting now, 19 (16%) set no upper age limit and 102 (84%) stop at 75 or younger; 86 take children under 18; 53 take healthy volunteers.

This study: 8 Years to 15 Years · all sexes · no healthy volunteers.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 28 studies in Myopia by EssilorLuxottica, or all of them as a file.
02

Study summary

The goal of this clinical trial is to learn how children with myopia aged 8 to 15 years move their eyes and heads during near-vision tasks while wearing different spectacle lenses, and if wearing myopia control spectacle lenses for one month is related to change in eye length (axial length). The main questions it aims to answer are:

  1. How do eye gaze position and head movement patterns change when children wear the commercially available myopia control spectacle lenses compared with single-vision spectacle lenses?
  2. Does wearing myopia control spectacle lenses for one month lead to short-term changes in axial length?

This study compares commercially available myopia control spectacle lenses with single-vision spectacle lenses to evaluate differences in eye gaze position, head movement patterns, and axial length.

Participants will:

  • Attend three study visits at the Singapore Polytechnic Optometry Centre.
  • Wear the assigned study spectacles while performing near-vision tasks.
  • Have video recordings of their face collected, to evaluate eye and head movements, during the near-vision tasks.
03

Conditions studied

  • Myopia

Browse trials for

Keywords

  • eye gaze
  • lens gaze
  • head movement
  • myopia control
04

Who can participate

Ages eligible
8 Years to 15 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Between 8 and 15 years of age
  • No amblyopia
  • No tropia
  • No known/reported ocular pathology
  • Myopes with spherical equivalent refraction of -0.50 D to -6.00 D
  • Astigmatism of less than -4.00 D
  • Anisometropia of less than -1.50D
  • Best corrected monocular VA better than 0.10 logMAR in both eyes
  • Able to follow the protocol
  • Wearing habitual correction

Exclusion criteria

Exclusion Criteria:

  • Currently or previously on any myopia control interventions (I.e., Myopia control spectacle lenses, myopia control contact lenses, orthokeratology lenses or atropine, etc.)
  • Myopes who do not have a pair of habitual glasses
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Sequential Lens Evaluation

    Single-arm, within-subject design; Each participant received both Single Vision Lens (SVL) and Myopia Control Lens (MCL) spectacles.

    Device: Single Vision Lens (SVL) · Device: Myopia Control Lens (MCL)

Interventions

  • DeviceSingle Vision Lens (SVL)

    Standard, commercially available single vision spectacle lenses worn on-site during near vision task assessment at Visit 2 and Visit 3.

  • DeviceMyopia Control Lens (MCL)

    Commercially available Stellest® spectacle lenses worn on-site during near vision task assessment at Visit 2 and Visit 3, and worn continuously for approximately 1 month between Visit 2 and Visit 3.

06

What researchers measure

Primary outcomes

  1. Change in eye gaze position

    Eye gaze positions are derived from post-processed video recordings of participants performing near-vision tasks while wearing the study spectacles.

    Time frame: Visit 1 (Baseline), Visit 2 (1-2 weeks), Visit 3 (1-month)

  2. Change in axial length

    Time frame: Visit 2 (Baseline), Visit 3 (1-month)

Other outcomes

  1. Change in head movement pattens

    Head movement patterns are derived from post-processed video recordings of participants performing near-vision tasks while wearing the study spectacles.

    Time frame: Visit 1 (Baseline), Visit 2 (1-2 weeks), Visit 3 (1-month)

  2. Change in scores of the Pediatric Refractive Error Profile (PREP) version 2 questionnaire

    Child-reported scores ranging from 0 to 100, with higher scores indicate better vision-related quality of life. Parent-reported scores ranging from 1-10, with higher scores indicate better vision-related quality of life.

    Time frame: Visit 2 (Baseline), Visit 3 (1-month)

07

Study locations

1 site
  • Singapore Polytechnic Optometry Centre (SPOC)
    Singapore, Singapore 139651, Singapore
08

References and documents

Publications

  • Gao Y, Lim EW, Yang A, Drobe B, Bullimore MA. The impact of spectacle lenses for myopia control on visual functions. Ophthalmic Physiol Opt. 2021 Nov;41(6):1320-1331. doi: 10.1111/opo.12878. Epub 2021 Sep 16. PubMed 34529275 ↗
  • Li X, Ding C, Li Y, Lim EW, Gao Y, Fermigier B, Yang A, Chen H, Bao J. Influence of Lenslet Configuration on Short-Term Visual Performance in Myopia Control Spectacle Lenses. Front Neurosci. 2021 May 25;15:667329. doi: 10.3389/fnins.2021.667329. eCollection 2021. PubMed 34113234 ↗
  • Bao J, Huang Y, Li X, Yang A, Zhou F, Wu J, Wang C, Li Y, Lim EW, Spiegel DP, Drobe B, Chen H. Spectacle Lenses With Aspherical Lenslets for Myopia Control vs Single-Vision Spectacle Lenses: A Randomized Clinical Trial. JAMA Ophthalmol. 2022 May 1;140(5):472-478. doi: 10.1001/jamaophthalmol.2022.0401. PubMed 35357402 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Apr 2025 to primary completion in Mar 2026, 11 months.

Of 234 industry-sponsored interventional studies with no phase under Myopia, half reached primary completion within 6 months of starting (the median), counting those still running; a quarter within 2 and three quarters within 24. This study's 11 months is above that.

Counting every sponsor, half of 434 studies reached it within 14 months; a quarter within 3 and three quarters within 34.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 18, 2026
First posted
Aug 24, 2026
StartActual
Apr 2, 2025
Primary completionActual
Mar 9, 2026
CompletionActual
Mar 23, 2026
Last update
Aug 24, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 24, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07780851
Responsible party
Sponsor
First posted
Aug 24, 2026
Start date
Apr 2, 2025
Primary completion
Mar 9, 2026
Completion
Mar 23, 2026
Last update
Aug 24, 2026

Study contacts

Danny Sim
principal investigator · Singapore Polytechnic

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

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