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- W4385552783 abstract "To analyze presence of hyperreflective foci (HRF) across different age-related macular degeneration (AMD) severities and examine its correlation with other structural and functional AMD features.Longitudinal, single-center, case-control study.One hundred and fifty-eight participants aged > 50 years old with varying AMD severities (including no AMD).Color fundus imaging was used to assess AMD severity and hyperpigmentation (PGM) presence. Subretinal drusenoid deposits (SDD) and HRF were detected on OCT volumes. The correlations of HRF with additional AMD features were evaluated using linear and logistic mixed-effects models. One study eye per participant underwent dark adaptation (DA) testing to measure rod intercept time (RIT) for structure function associations. Eyes were followed longitudinally and changes in AMD severity and RIT were measured relative to HRF presence.The primary outcome was presence of HRF, which was compared with presence of other AMD features and DA impairment.One hundred and fifty-eight participants (median baseline age of 73.1 [interquartile range (IQR) = 66–79] years) contributing 1277 eye visits were included. Hyperreflective foci (HRF) were detected more frequently in higher AMD severities. Hyperreflective-foci presence was significantly associated with PGM presence (odds ratio 832.9, P < 0.001) and SDD presence (odds ratio 9.42, P = 0.017). Eyes with HRF demonstrated significantly longer DA (median 27.1 [IQR = 16–40] minutes) than those without HRF (13.5 [10–22] minutes) but less than eyes with SDD only (40 [28–40] minutes). Highest RIT values were found in eyes with both HRF and SDD (40.0 [40–40] minutes). Age and HRF explained a similar proportion of RIT variability as age and SDD. Eyes that developed HRF demonstrated baseline RITs closer to eyes with HRF at baseline, compared with eyes that never developed HRF (29.1 [16–40], 38.5 [22–40] versus 13.1 [10–22] minutes; Kruskal–Wallis P < 0.001).The progressively increased presence of HRF in higher AMD severities, and its correlation with previously associated AMD biomarkers, suggests HRF is an important OCT feature adding to the understanding of disease progression. Hyperreflective foci presence was associated with delays in DA, indicating HRF is a marker for visual cycle impairment.Proprietary or commercial disclosure may be found after the references." @default.
- W4385552783 created "2023-08-04" @default.
- W4385552783 creator A5049900657 @default.
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- W4385552783 date "2023-08-01" @default.
- W4385552783 modified "2023-09-27" @default.
- W4385552783 title "50-Watt Bird Repellent Maculopathy" @default.
- W4385552783 doi "https://doi.org/10.1016/j.oret.2023.07.013" @default.
- W4385552783 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37542498" @default.
- W4385552783 hasPublicationYear "2023" @default.
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