Spatial and spectral dependency of trans-palpebral illumination efficiency in widefield fundus photography

Mojtaba Rahimi; Alfa Rossi; Taeyoon Son; Xincheng Yao

doi:10.1117/12.3000526

12 March 2024 Spatial and spectral dependency of trans-palpebral illumination efficiency in widefield fundus photography

Mojtaba Rahimi, Alfa Rossi, Taeyoon Son, Xincheng Yao

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Proceedings Volume 12824, Ophthalmic Technologies XXXIV; 128240K (2024) https://doi.org/10.1117/12.3000526
Event: SPIE BiOS, 2024, San Francisco, California, United States

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Abstract

The purpose of this study is to investigate the effect of light delivery location on spectral efficiency in trans-palpebral illumination. In comparison to transpupillary illumination, trans-palpebral illumination offers a pupil dilation-free alternative for widefield fundus photography. However, the spectral efficiency is influenced by the spatial variance of light properties across the palpebra and sclera. To assess the spatial dependency of spectral illumination efficiency, four narrow-band light sources spanning visible and near-infrared (NIR) wavelengths were employed. Comparative analysis revealed a notable reliance of visible light efficiency on spatial location, whereas NIR light efficiency exhibited minimal sensitivity to the illumination location.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Mojtaba Rahimi, Alfa Rossi, Taeyoon Son, and Xincheng Yao "Spatial and spectral dependency of trans-palpebral illumination efficiency in widefield fundus photography", Proc. SPIE 12824, Ophthalmic Technologies XXXIV, 128240K (12 March 2024); https://doi.org/10.1117/12.3000526

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