Actively Recruiting
A Study on Body Posture and Eye Movements During Screen Usage on Adults Aged 18 to 65 Wearing Various Types of Eyeglasses
Led by Essilor International · Updated on 2026-04-13
69
Participants Needed
1
Research Sites
25 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
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
Official Title
A Study on Body Posture and Eye Movements During Screen Usage on Adults Aged 18 to 65 Wearing Various Types of Eyeglasses
Who Can Participate
Eligibility Criteria
You may qualify if you...
- 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
You will not qualify if you...
- 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
- Binocular vision problems such as amblyopia, strabismus, or double vision
- Vertebral or cervical troubles
- Difficulty to move, vertigo, ocular migraine
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Essilor International
Paris, France, 75012
Actively Recruiting
Research Team
C
Chloé Moger
CONTACT
V
Valérie Parmentier
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NON_RANDOMIZED
Model
PARALLEL
Primary Purpose
BASIC_SCIENCE
Number of Arms
3
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