Affiliation:
1. Department of Ophthalmology Bordeaux University Hospital Bordeaux France
2. University of Bordeaux Inserm, Bordeaux Population Health Research Center, LEHA team Bordeaux France
Abstract
AbstractPurposeTo test the hypothesis that central drusen location is strongly linked with known Age‐related Macular Degeneration (AMD) risk factors and risk of incident late AMD.MethodsThe Alienor study is a prospective population‐based cohort study of residents of Bordeaux, France, followed from 2009 to 2017. On retinal photographs, we defined central drusen as at least one soft drusen (>63 μm) within 500 μm from fovea and pericentral drusen as at least one drusen 500–3000 μm from fovea, in the absence of any central drusen. Late AMD (atrophic and/or neovascular) was diagnosed using multimodal imaging. In total, 481 eyes were included in the analysis: 160 central and 321 pericentral. We investigated associations with systemic (age, sex, smoking, medical prescriptions, plasma concentrations of lipids and nutrients, UV exposure, blood pressure), ocular (retinal thickness, cataract extraction) and genetic risk scores (GRS).ResultsIn multivariate logistic regression central drusen were associated with smoking (OR, 2.95 for smoking more than 20 pack‐years, p = 0.02), HDL‐cholesterol (OR, 1.57 for 1 standard deviation (SD) increase, p = 0.0048), pulse pressure (OR, 0.77 for 1 SD increase, p = 0.04), Age‐Related Maculopathy Susceptibility 2 (ARMS2) GRS (OR, 1.42; 95% CI, 1.11–1.83) and complement GRS (OR, 1.55; 95% CI, 1.15–2.10). In Cox modelling, the central location of drusen (at baseline or during the follow‐up) was associated with a 4.41‐fold increased risk (95% CI,1.98–9.81) for an incident late AMD.ConclusionCentral drusen were strongly associated with AMD risk factors and incident late AMD, suggesting that it represents a key marker for AMD progression.
Funder
Agence Nationale de la Recherche
Université de Bordeaux
Subject
Ophthalmology,General Medicine