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| ID | Type | Description | Link |
|---|---|---|---|
| 2025-A02528-41 | Other Identifier | ANSM RCB |
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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 :
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Young Adults | Experimental | Young adults will test single vision lenses |
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| Presbyopes between 51 and 65 wearing progressive lenses | Experimental | Presbyopes between 51 and 65 will test single vision and progressive lenses |
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| Presbyopes between 43 and 50 not wearing progressive lenses | Experimental | Presbyopes between 43 and 50 will test single vision and progressive lenses |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Eye exam | Device | Participants will get an eye exam |
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| Measure | Description | Time Frame |
|---|---|---|
| Quantification of Gaze Lowering using an eye-tracker device | Quantitative Assessment of eye movements in degree with an eye-tracker during visual tasks | From enrollment to 3 months after enrollment |
| Measure | Description | Time Frame |
|---|---|---|
| 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 | From enrollment to 3 months after enrollment |
| Digital device usage distance using motion capture system |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Chloé Moger | Contact | +33(0)155964827 | mogerc@essilor.fr | |
| Valérie Parmentier | Contact | +33(0)155964912 | PARMENTV@ESSILOR.fr |
| Name | Affiliation | Role |
|---|---|---|
| Chloé Moger | Essilor International | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Essilor International | Recruiting | Paris | 75012 | France |
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| ID | Term |
|---|---|
| D011187 | Posture |
| ID | Term |
|---|---|
| D009142 | Musculoskeletal Physiological Phenomena |
| D055687 | Musculoskeletal and Neural Physiological Phenomena |
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3 groups will follow different interventions.
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| Body posture and eye movements behaviour of digital device users | Other | Measurement of the body posture and eye movements behaviour of digital device users while performing simple visual tasks with various types of lenses |
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Quantitative assessment of digital devices' usage distance during visual tasks |
| 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) | 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) | 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) | 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) | From enrollment to 3 months after enrollment |