Journal of cataract and refractive surgery · 2026
Novel 3D-printed coaxial light microscope adapter for ophthalmic wet laboratory.
СтатьяРандомизированное исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Rubegni Giovanni, Fruschelli Mario, Mensi Lorenzo, Mugnai Martina, Padula Tommaso, Avitabile Alessandro, Tosi Gian Marco
Аннотация
PURPOSE: To compare the usability and training effectiveness of a 3D-printed coaxial illumination system mounted on an off-the-shelf stereomicroscope with a professional ophthalmic surgical microscope, in cataract surgery simulation.
SETTING: Ophthalmology Lab, Ophthalmology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Siena, Italy.
DESIGN: Prospective randomized crossover study.
METHODS: 20 ophthalmology residents performed simulated cataract surgery steps, including corneal incisions, capsulorhexis, hydrodissection, and corneal suturing, in porcine eyes using an off-the-shelf stereomicroscope and a Zeiss OPMI Lumera 700. The stereomicroscope was equipped with a 3D-printed coaxial light adapter. After each simulation, participants completed a 5-item evaluation questionnaire (5-point Likert scale) and the System Usability Scale (SUS).
RESULTS: The Zeiss microscope received significantly higher scores for image quality (4.15 vs 3.40, P < .001) and red reflex visibility (4.10 vs 3.25, P < .001). No significant differences were observed in depth perception, ergonomics, or ease of instrument handling. The stereomicroscope scored higher in the SUS (80.5 ± 5.48 vs 66.6 ± 4.95, P < .001).
CONCLUSIONS: The modified stereomicroscope with 3D-printed coaxial illumination represents a cost-effective alternative for ophthalmic wet laboratory training. Despite lower optical performance, its usability and affordability make it a valuable tool for simulation-based education, particularly in low-resource settings.
SETTING: Ophthalmology Lab, Ophthalmology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Siena, Italy.
DESIGN: Prospective randomized crossover study.
METHODS: 20 ophthalmology residents performed simulated cataract surgery steps, including corneal incisions, capsulorhexis, hydrodissection, and corneal suturing, in porcine eyes using an off-the-shelf stereomicroscope and a Zeiss OPMI Lumera 700. The stereomicroscope was equipped with a 3D-printed coaxial light adapter. After each simulation, participants completed a 5-item evaluation questionnaire (5-point Likert scale) and the System Usability Scale (SUS).
RESULTS: The Zeiss microscope received significantly higher scores for image quality (4.15 vs 3.40, P < .001) and red reflex visibility (4.10 vs 3.25, P < .001). No significant differences were observed in depth perception, ergonomics, or ease of instrument handling. The stereomicroscope scored higher in the SUS (80.5 ± 5.48 vs 66.6 ± 4.95, P < .001).
CONCLUSIONS: The modified stereomicroscope with 3D-printed coaxial illumination represents a cost-effective alternative for ophthalmic wet laboratory training. Despite lower optical performance, its usability and affordability make it a valuable tool for simulation-based education, particularly in low-resource settings.