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Blink Reminders and Meibomian Gland Loss in Digital Screen Users
Sponsor: Asociación para Evitar la Ceguera en México
Summary
This randomized clinical trial aims to evaluate if a blink reminder program ('BlinkEasy') reduces the progression of Meibomian gland loss in intensive digital screen users over three months , using infrared meibography as the primary structural measure. Additionally, the study will analyze changes in dry eye symptoms using the 12-item Ocular Surface Disease Index (OSDI) questionnaire and non-invasive tear break-up time (NIBUT).
Official title: Effect of a Blink Reminder Program on the Progression of Meibomian Gland Loss in Intensive Digital Screen Users: a Randomized Controlled Trial With Infrared Meibography
Key Details
Gender
All
Age Range
18 Years - 40 Years
Study Type
INTERVENTIONAL
Enrollment
28
Start Date
2026-02-19
Completion Date
2026-08
Last Updated
2026-02-27
Healthy Volunteers
No
Interventions
Digital Blink Reminder Software (BlinkEasy)
Participants will install the 'BlinkEasy' software on their primary digital display terminal (VDT). The application provides automated visual notifications at a frequency of approximately 8 reminders per minute, specifically designed to prompt full, voluntary blinks. Participants are instructed to perform two consecutive complete blinks upon each visual cue. The software operates during the user's active screen time throughout the 12-week study period. System logs will be recorded to monitor daily adherence and software usage time to ensure consistency in the intervention delivery.
Visual Hygiene Education (20-20-20 Rule).
Participants will receive a standardized educational session and written materials on visual hygiene and ergonomic practices for screen use. The primary intervention is the '20-20-20 rule,' which instructs the user to take a 20-second break every 20 minutes of screen use by looking at an object at least 20 feet (6 meters) away to facilitate ocular muscle relaxation and natural blinking. This group will not use any automated reminder software. Adherence will be self-reported by participants during follow-up visits over the 12-week study period.