ORIGINAL RESEARCH article

Front. Big Data

Sec. Machine Learning and Artificial Intelligence

FunduScope: A Human-Centered, Machine Learning–Based Interactive Tool for Training Junior Ophthalmologists in Diabetic Retinopathy Detection

  • 1. German Research Center for Artificial Intelligence (DFKI), Kaiserslautern, Germany

  • 2. Carl von Ossietzky Universitat Oldenburg, Oldenburg, Germany

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Abstract

Interpreting fundus images is an essential skill for detecting eye diseases, such as diabetic retinopathy (DR), one of the leading causes of visual impairment. However, the training of junior doctors relies on experienced ophthalmologists, who often lack the time for teaching, or on printed training materials that lack variability in examples. In this work, we present FunduScope, an interactive human-centered learning tool for training junior ophthalmologists, which is based on a pre-trained ML model for classifying DR. In a qualitative pre-study, we investigated the needs of junior doctors and identified gaps in recent learning procedures. In the main mixed-methods study, we examined the experience of 10 junior doctors with the tool and its impact on cognitive load, usability, and additional factors relevant to e-learning tools. Despite technical constraints our results confirm the potential of using an ML-based learning tool in medical education, addressing the time constraints of ophthalmologists, and providing learning independence for junior doctors. However, future work could extend the learning tool by using explainable artificial intelligence (XAI) to further support the clinical decision making of learners and exceeding the scope of this proof of concept to other ophthalmic diseases.

Summary

Keywords

Cognitive Load, Design thinking framework, e-learning, Human-centered design, learning tool, machine learning, usability

Received

31 July 2025

Accepted

02 February 2026

Copyright

© 2026 Bittner, Barz and Sonntag. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: Sara-Jane Bittner; Michael Barz

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All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.

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