ArticleBiomedical optics express2023
Portable widefield fundus camera with high dynamic range imaging capability.
Article in Biomedical optics express, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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The trial behind it
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Who cites it
13 citing papers in PubMed.
- High dynamic range widefield fundus photography with transcranial illumination: a contrast agent-free method for non-mydriatic choroidal imaging.Biomedical optics express · 2025Article
- Affordable ultra-widefield smartphone PedCam for comprehensive pediatric retinal examination.Biomedical optics express · 2024Article
- Differential Capillary and Large Vessel Analysis Improves OCTA Classification of Diabetic Retinopathy.Investigative ophthalmology & visual science · 2024Article
- Differential artery-vein analysis improves the OCTA classification of diabetic retinopathy.Biomedical optics express · 2024Article
- Multispectral Fundus Photography of Choroidal Nevi With Trans-Palpebral Illumination.Translational vision science & technology · 2024Article
- Integrating a Fundus Camera with High-Frequency Ultrasound for Precise Ocular Lesion Assessment.Biosensors · 2024Article
- Multispectral Fundus Photography of Choroidal Nevi with Trans-Palpebral Illumination.medRxiv : the preprint server for health sciences · 2024Article
- Preserving polarization maintaining photons for enhanced contrast imaging of the retina.Biomedical optics express · 2023Article
- Evaluating spatial dependency of the spectral efficiency in trans-palpebral illumination for widefield fundus photography.Biomedical optics express · 2023Article
- Optimizing the OCTA layer fusion option for deep learning classification of diabetic retinopathy.Biomedical optics express · 2023Article
- Introduction to Visual and Physiological Optics feature issue ofBiomedical optics express · 2023Article
- An open-source deep learning network AVA-Net for arterial-venous area segmentation in optical coherence tomography angiography.Communications medicine · 2023Article
- Utility of multimodal imaging in the clinical diagnosis of inherited retinal degenerations.Taiwan journal of ophthalmologyReview
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
Fundus photography is indispensable for the clinical detection and management of eye diseases. Low image contrast and small field of view (FOV) are common limitations of conventional fundus photography, making it difficult to detect subtle abnormalities at the early stages of eye diseases. Further improvements in image contrast and FOV coverage are important for early disease detection and reliable treatment assessment. We report here a portable, wide FOV fundus camera with high dynamic range (HDR) imaging capability. Miniaturized indirect ophthalmoscopy illumination was employed to achieve the portable design for nonmydriatic, widefield fundus photography. Orthogonal polarization control was used to eliminate illumination reflectance artifacts. With independent power controls, three fundus images were sequentially acquired and fused to achieve HDR function for local image contrast enhancement. A 101° eye-angle (67° visual-angle) snapshot FOV was achieved for nonmydriatic fundus photography. The effective FOV was readily expanded up to 190° eye-angle (134° visual-angle) with the aid of a fixation target without the need for pharmacologic pupillary dilation. The effectiveness of HDR imaging was validated with both normal healthy and pathologic eyes, compared to a conventional fundus camera.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.