ArticleBMJ open ophthalmology2025
Quantifying retinal size and shape distortion in different ultra-widefield imaging systems.
Article in BMJ open ophthalmology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Quantitative Correction for Peripheral Distortion in Ultra-Widefield Fundus Imaging Using a High-Precision 3D-Printed Model Eye.Translational vision science & technology · 2026Article
- Influence of ocular biometry on peripheral retinal visualization: a comparative study of Clarus and Optos widefield imaging systems.BMC ophthalmology · 2026Article
- Montage Error in Ultra-Widefield Imaging of Retinal Hemangioblastomas.Case reports in ophthalmological medicine · 2026Article
- Comparative Evaluation of Field of View Across Widefield Retinal Imaging Systems.Translational vision science & technology · 2025Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo quantitatively investigate the retinal size and shape distortion in different ultra-widefield (UWF) imaging systems. METHODS AND ANALYSIS: We imaged the posterior segments of model eyes using Daytona, Mirante, CLARUS 500, VG2001, BMizar and TRC-NW8. We measured the scale bars of each grid and the compactness of each ring to quantify the size and shape distortion. The relationship between the relative size with eccentricity and axial length was analysed. The size and shape distortion were compared among different UWF systems.
resultsThe size is positively associated with eccentricity (β=0.202-0.482; p<0.001) and negatively associated with axial length (β=-0.787 to -0.890; p<0.001) in all UWF systems. There is a significant difference in slopes across devices. The size distortion of Mirante is lower than the other UWF systems (p=0.0083-0.0472) except for TRC-NW8. Multivariate linear regression analysis found the adjusted R
conclusionQuantitative measurements identified different relationships between size distortion with axial length and eccentricity in different UWF systems, which can serve as a reference for correcting size distortion. Shape distortion only occurs in Daytona.
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