Reticular pseudodrusen (RPD) signify a critical phenotype driving vision loss in age-related macular degeneration (AMD). Their detection is paramount in the clinical management of those with AMD, yet they remain challenging to reliably identify. We thus developed a deep learning (DL) model to segment RPD from 9,800 optical coherence tomography B-scans, and this model produced RPD segmentations that had higher agreement with four retinal specialists (Dice similarity coefficient [DSC]=0·76 [95% confidence interval [CI] 0·71-0·81]) than the agreement amongst the specialists (DSC=0·68, 95% CI=0·63-0·73; <0·001). In five external test datasets consisting of 1,017 eyes from 812 individuals, the DL model detected RPD with a similar level of performance as two retinal specialists (area-under-the-curve of 0·94 [95% CI=0·92-0·97], 0·95 [95% CI=0·92-0·97] and 0·96 [95% CI=0·94-0·98] respectively; ≥0·32). This DL model enables the automatic detection and quantification of RPD with expert-level performance, which we have made publicly available.
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http://dx.doi.org/10.1101/2024.09.11.24312817 | DOI Listing |
Ocul Immunol Inflamm
December 2024
Harvard Retinal Imaging Lab, Retina Service, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts, USA.
Purpose: To describe a case of early-stage Extensive Macular Atrophy with Pseudodrusen-like appearance (EMAP) presenting with acute monocular loss and atypical retinal lesions suggestive of posterior uveitis.
Methods: Case report with longitudinal follow-up including visual field testing and multimodal imaging.
Results: A 53-year-old woman presented with sudden vision loss in her right eye (RE).
Ophthalmology
November 2024
Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin. Electronic address:
Purpose: With the widespread availability of ultrawide field imaging, peripheral retinal abnormalities in age-related macular degeneration (AMD) have garnered attention. However, longitudinal studies on AMD peripheral findings are limited. This study aims to characterize and quantify these features over five years.
View Article and Find Full Text PDFGraefes Arch Clin Exp Ophthalmol
November 2024
Department of Ophthalmology, Ege University, Izmir, Turkey.
Purpose: To evaluate the relationship between the presence of reticular pseudodrusen (RPD) and the risk allele of ARMS2 rs10490924 variation in dry-AMD patients by using multimodal imaging. Also, to compare patients with and without RPD and healthy volunteers according to the distribution of the risk allele.
Methods: In this cross-sectional study, dry-AMD patients with (Group A, n = 50) and without (Group B, n = 50) RPD and healthy volunteers (Group C, n = 50) were enrolled.
Ophthalmol Retina
November 2024
School of Medicine, Vita-Salute San Raffaele University, Milan, Italy; Division of Head and Neck, Ophthalmology Unit, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), San Raffaele Scientific Institute, Milan, Italy. Electronic address:
Purpose: To identify baseline OCT predictors of the 3-year macular atrophy (MA) development for type 3 (T3) macular neovascularization (MNV) secondary to neovascular age-related macular degeneration (nAMD) treated by anti-VEGF therapy.
Design: Multicenter, retrospective, longitudinal study.
Participants: We included patients with treatment-naive T3 MNV secondary to nAMD at baseline, treated with anti-VEGF during a 3-year follow-up.
Dis Model Mech
November 2024
Department of Ophthalmology, Research Laboratory of Ophthalmology and Vision Sciences, Eye Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China.
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