Study of Blinking as a Function of Tear Film Quality
ConditionDry Eye
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-65
SponsorEssilor International
About this trial
The goal of this study is to better understand how eye blinking behavior is linked to the stability of the tear film, in adults aged 18 to 65 years, with or without symptoms of dry eye.
The main questions are:
* Do the results of a New Blink Task reflect tear film stability ? * How are the blink related metrics in relation with each other? Researchers will compare two groups of participants-those without dry eye symptoms and those with dry eye symptoms-to see if blinking measures differ between them and whether these measures relate differently to tear film quality.
Participants will:
* Answer a questionnaire about dry eye symptoms * Have their visual correction measured (if they wear glasses) * Undergo non-invasive assessments of tear film quality using an imaging device * Complete three types of blink tasks, each repeated three times, including measurements of blinking and of tear film stability
Eligibility criteria
Qualifiers
Volunteer, fluent in French, willing to follow the protocol, able to read and understand the information sheet and provide free and informed consent
Covered by a social security
Aged between 18 and 65 years inclusive
Binocular near visual acuity ≤ 0.3 LogMAR (≥ 5/10) (corrective glasses accepted)
Disqualifiers
Employees of Essilor International, Luxottica, or GrandVision and their subsidiaries
Pregnant or breastfeeding women (Article L1121-5)
Individuals deprived of liberty by judicial or administrative decision, or hospitalized without consent under Articles L.3212-1 and L.3213-1, who do not fall under Article L.1121-8, and individuals admitted to a health or social care facility for purposes other than research
Adults unable or incapable of giving informed consent (Article L1121-8)
Trial design
Treatments tested in this trial
- Blink behaviour
Treatment groups
60 Participants
are divided into 1 treatment groupSponsors and collaborators
Source ClinicalTrials.gov