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The Effect of Experience on Visual Search Patterns in Retinal Imaging Analysis
Ophthalmic Surgery, Lasers & Imaging Retina
|March 31, 2025
Summary
Expert ophthalmologists process retinal images faster and more thoroughly than novices. A standardized viewing technique, emulating expert analysis, is recommended for residents to improve diagnostic accuracy.
Area of Science:
- Ophthalmology
- Medical Imaging Analysis
- Human Factors in Medicine
Background:
- Retinal diagnostic imaging is increasingly used in ophthalmology.
- Standardized viewing techniques are needed for accurate image interpretation.
- Visual search patterns in ophthalmologists are not well-defined.
Purpose of the Study:
- To investigate visual search patterns in ophthalmologists of varying experience levels.
- To compare eye-tracking data between residents and attending ophthalmologists.
- To identify characteristics of expert image analysis.
Main Methods:
- Eye-tracking technology was used to monitor gaze patterns.
- Participants included residents (PGY2-4), retina fellows, and attending ophthalmologists.
- Participants analyzed fundus images.
Main Results:
- Attending ophthalmologists exhibited shorter fixation durations and saccade lengths, indicating faster information processing.
- Experts analyzed a larger proportion of the image area compared to novices.
- A global-focal search pattern was observed in experts, suggesting enhanced thoroughness.
Conclusions:
- Expert ophthalmologists demonstrate distinct gaze characteristics reflecting efficient and thorough image processing.
- A standardized image interpretation method, mimicking expert patterns (disc-macula-vessel-periphery with radial sweeps), is recommended for residents.
- Teaching standardized viewing techniques can improve diagnostic accuracy in ophthalmology residents.
