Healthy AdultsPOEMNCT07499180
A Study on Body Posture and Eye Movements During Screen Usage on Adults Aged 18 to 65 Wearing Various Types of Eyeglasses
A study testing Eye exam and Body posture and eye movements behaviour of digital device users in people with Healthy Adults, run by Essilor International at 1 site in France.
Trial summary
The goal of this clinical study is to evaluate how adults aged 18 to 65 move their bodies and eyes when they use screens, with various eyeglasses. The main questions it aims to answer are : How the behaviour between young and presbyopes is different while performing visual tasks on digital devices ? How the behaviour… Read more about this study
- Who is it for?
- Ages 18 to 65 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy Adults
- What is being tested?
- Eye exam and Body posture and eye movements behaviour of digital device users
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 69 participants
- Where
- 1 siteFrance
- Study dates
- 7 Apr 2026to Oct 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Distance refractive error (equivalent sphere) between -3D and +3D
- Astigmatism inferior or equal to 1D
- Anisometropia inferior or equal to 1.5D
- Addition (for presbyopes) between 0.75D and 2.75D
- Minimum corrected visual acuity : 8/10
- Stable binocular vision
Who cannot join
- Employee of Essilor, Luxottica, GrandVision and their subsidiaries
- Aphakia, pseudophakia or ocular surgery
- Reported systemic pathology that affects vision
- Medical treatment or taking medications that affect vision
- Severe ocular pathology declared, involving a loss of visual field as in glaucoma, a loss of acuity
- Reported neurological deficit, including a history of seizure or sensorimotor coordination disorders, vestibular or cerebellar pathology
Show all 9Show fewer
- Binocular vision problems such as amblyopia, strabismus, or double vision
- Vertebral or cervical troubles
- Difficulty to move, vertigo, ocular migraine
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
France1 site, 1 recruiting
- Recruiting
Essilor International
Paris, 75012
Chloé Moger, +33(0)1 55 96 48 27, mogerc@essilor.fr
About this study
Official title: Etude Des Comportements Posturaux et Oculomoteurs Durant l'Utilisation d'Outils Digitaux
The goal of this clinical study is to evaluate how adults aged 18 to 65 move their bodies and eyes when they use screens, with various eyeglasses. The main questions it aims to answer are :
- How the behaviour between young and presbyopes is different while performing visual tasks on digital devices ?
- How the behaviour while performing visual tasks changes according to different types of eyeglasses ? Participants will be asked to take part in an eye exam and do simple visual tasks on digital devices.
- Conditions
- Healthy Adults
- Being tested
- Eye exam, Body posture and eye movements behaviour of digital device users
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Eye examDevice
Participants will get an eye exam
Body posture and eye movements behaviour of digital device usersOther
Measurement of the body posture and eye movements behaviour of digital device users while performing simple visual tasks with various types of lenses
| Study group | Role | What they receive |
|---|---|---|
| Young Adults | Experimental | Young adults will test single vision lenses Receives: Device: Eye exam; Other: Body posture and eye movements behaviour of digital device users |
| Presbyopes between 51 and 65 wearing progressive lenses | Experimental | Presbyopes between 51 and 65 will test single vision and progressive lenses Receives: Device: Eye exam; Other: Body posture and eye movements behaviour of digital device users |
| Presbyopes between 43 and 50 not wearing progressive lenses | Experimental | Presbyopes between 43 and 50 will test single vision and progressive lenses Receives: Device: Eye exam; Other: Body posture and eye movements behaviour of digital device users |
What is being measured
The primary outcome is the main question the study is designed to answer.
Quantification of Gaze Lowering using an eye-tracker device
Quantitative Assessment of eye movements in degree with an eye-tracker during visual tasks
Measured: From enrollment to 3 months after enrollment
Secondary outcomes (6)
Quantification of Head and body inclination with a motion capture system
Quantitative evaluation of postural behavior in degree with a motion capture system while performing visual tasks
Measured: From enrollment to 3 months after enrollment
Digital device usage distance using motion capture system
Quantitative assessment of digital devices' usage distance during visual tasks
Measured: From enrollment to 3 months after enrollment
Correlation between refraction profile and visual tasks' postural behavior
Statistical analysis of the association between participant's refraction characteristics and their visual tasks' behavioral patterns (Quantification of Gaze Lowering, Quantification of head and body inclination, Digital device usage distance)
Measured: From enrollment to 3 months after enrollment
Correlation between binocular vision profile and visual tasks' postural behavior
Statistical analysis of the association between participant's binocular vision characteristics and their visual tasks' behavioral patterns (Quantification of Gaze Lowering, Quantification of head and body inclination, Digital device usage distance)
Measured: From enrollment to 3 months after enrollment
Correlation between accommodation profile and visual tasks' postural behavior
Statistical analysis of the association between participant's accommodation characteristics and their visual tasks' behavioral patterns (Quantification of Gaze Lowering, Quantification of head and body inclination, Digital device usage distance)
Measured: From enrollment to 3 months after enrollment
Correlation between head-eye ratio profile and visual tasks' postural behavior
Statistical analysis of the association between the head-eye ratio (relative contribution of the head and the eye in a composite movement involving both of them) and the visual tasks' behavioral patterns (Quantification of Gaze Lowering, Quantification of head and body inclination, Digital device usage distance)
Measured: From enrollment to 3 months after enrollment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Mar 2026
- Study start7 Apr 2026
- Primary completionOct 2026 (estimated)
- Study completionOct 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Healthy AdultsStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Model description
- 3 groups will follow different interventions. * Young adults (18-35) : will test single vision lenses * Presbyopes not used to wear progressive lenses (43-50) : will test single vision and progressive lenses * Presbyopes used to wear progressive lenses (51-65) : will test single vision and progressive lenses
- Masking
- None (open label)
- Enrolment
- 69 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Essilor International
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Chloé Moger, Principal investigator, Essilor International
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07499180
- Sponsor's protocol ID
- WS10482
- Other IDs
- 2025-A02528-41
- Acronym
- POEM
- Status last verified
- Apr 2026
- First submitted
- 16 Mar 2026
- Last updated
- 13 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 13 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Etude Des Comportements Posturaux et Oculomoteurs Durant l'Utilisation d'Outils Digitaux
- ClinicalTrials.gov ID
- NCT07499180
- Acronym / sponsor ID
- POEM / WS10482
- Conditions
- Healthy Adults
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 69 participants (estimated)
- Lead sponsor
- Essilor InternationalIndustry (pharma, biotech, devices)
- Study start
- 7 Apr 2026 (actual)
- Primary completion
- Oct 2026 (estimated)
- Study completion
- Oct 2026 (estimated)
- First posted
- 30 Mar 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this clinical study is to evaluate how adults aged 18 to 65 move their bodies and eyes when they use screens, with various eyeglasses. The main questions it aims to answer are :
- How the behaviour between young and presbyopes is different while performing visual tasks on digital devices ?
- How the behaviour while performing visual tasks changes according to different types of eyeglasses ? Participants will be asked to take part in an eye exam and do simple visual tasks on digital devices.
Study design
- Primary purpose
- Basic science
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 3
- Model description
- 3 groups will follow different interventions. * Young adults (18-35) : will test single vision lenses * Presbyopes not used to wear progressive lenses (43-50) : will test single vision and progressive lenses * Presbyopes used to wear progressive lenses (51-65) : will test single vision and progressive lenses
| Arm | Type | Receives |
|---|---|---|
| Young Adults | Experimental | Device: Eye exam, Other: Body posture and eye movements behaviour of digital device usersYoung adults will test single vision lenses |
| Presbyopes between 51 and 65 wearing progressive lenses | Experimental | Device: Eye exam, Other: Body posture and eye movements behaviour of digital device usersPresbyopes between 51 and 65 will test single vision and progressive lenses |
| Presbyopes between 43 and 50 not wearing progressive lenses | Experimental | Device: Eye exam, Other: Body posture and eye movements behaviour of digital device usersPresbyopes between 43 and 50 will test single vision and progressive lenses |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Distance refractive error (equivalent sphere) between -3D and +3D
- Astigmatism inferior or equal to 1D
- Anisometropia inferior or equal to 1.5D
- Addition (for presbyopes) between 0.75D and 2.75D
- Minimum corrected visual acuity : 8/10
Key exclusion criteria (9 listed)
- Employee of Essilor, Luxottica, GrandVision and their subsidiaries
- Aphakia, pseudophakia or ocular surgery
- Reported systemic pathology that affects vision
- Medical treatment or taking medications that affect vision
- Severe ocular pathology declared, involving a loss of visual field as in glaucoma, a loss of acuity
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Eye examParticipants will get an eye exam | Device | Presbyopes between 43 and 50 not wearing progressive lenses, Presbyopes between 51 and 65 wearing progressive lenses, Young Adults |
| Body posture and eye movements behaviour of digital device usersMeasurement of the body posture and eye movements behaviour of digital device users while performing simple visual tasks with various types of lenses | Other | Presbyopes between 43 and 50 not wearing progressive lenses, Presbyopes between 51 and 65 wearing progressive lenses, Young Adults |
Primary outcome
Quantification of Gaze Lowering using an eye-tracker device
Time frame: From enrollment to 3 months after enrollment
Quantitative Assessment of eye movements in degree with an eye-tracker during visual tasks
6 secondary outcomes
Quantification of Head and body inclination with a motion capture system
Time frame: From enrollment to 3 months after enrollment
Digital device usage distance using motion capture system
Time frame: From enrollment to 3 months after enrollment
Correlation between refraction profile and visual tasks' postural behavior
Time frame: From enrollment to 3 months after enrollment
Correlation between binocular vision profile and visual tasks' postural behavior
Time frame: From enrollment to 3 months after enrollment
Correlation between accommodation profile and visual tasks' postural behavior
Time frame: From enrollment to 3 months after enrollment
Correlation between head-eye ratio profile and visual tasks' postural behavior
Time frame: From enrollment to 3 months after enrollment
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Apr 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Chloé Moger principal investigator
Essilor International
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Eye exam and Body posture and eye movements behaviour of digital device users in people with Healthy Adults, run by Essilor International at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 13 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Chloé Moger (+33(0)155964827, mogerc@essilor.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Quantification of Gaze Lowering using an eye-tracker device (time frame: From enrollment to 3 months after enrollment). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Apr 2026.