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Introducing a Sustainable Framework for Preschool Visual Acuity Screening: The Alexandroupolis Case.

Georgios Labiris^1,2, Christos Giazitzis^1,2, Christina Mitsi¹

¹Department of Ophthalmology, University Hospital of Alexandroupolis, Dragana, 68100 Alexandroupolis, Greece.

Journal of Clinical Medicine

|March 14, 2026

Summary

This study implemented Greece's first digital preschool vision screening program using the Democritus Digital Visual Acuity Test (DDiVAT). The program successfully identified students needing further evaluation, demonstrating DDiVAT's feasibility in educational settings.

Keywords:

DDiVAT amblyopia visual acuity visual screening

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Published on: October 18, 2024

Area of Science:

Ophthalmology
Public Health
Educational Technology

Background:

School-based programs aim to enhance student physical health and prevent late disease diagnosis.
Preschool visual acuity (VA) screening is crucial for early detection of amblyopia risk factors and learning difficulties.

Purpose of the Study:

To report the methods and outcomes of the first official kindergarten-based VA screening program in Greece.
To evaluate the operational performance and screening results of the Democritus Digital Visual Acuity Test (DDiVAT) in an educational setting.

Main Methods:

A kindergarten-based screening utilizing the DDiVAT screening framework.
The DDiVAT framework included a 4K Smart TV with the DDiVAT application and teacher training.

Main Results:

207 out of 2476 enrolled students (8.36%) were referred for suboptimal presenting VA.
Average VA was consistent with previous reports, ranging from logMAR 0.11 to 0.07.

Conclusions:

The DDiVAT system proved to be a feasible digital approach for preschool VA screening.
No significant technical difficulties were encountered during the implementation in real-world educational settings.