Robert P Finger1, Zhichao Wu2, Chi D Luu2, Frances Kearney2, Lauren N Ayton2, Lucia M Lucci3, William C Hubbard3, Jill L Hageman3, Gregory S Hageman3, Robyn H Guymer2. 1. Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Victoria, Australia. Electronic address: robert.finger@unimelb.edu.au. 2. Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Victoria, Australia. 3. Department of Ophthalmology and Visual Sciences, John A. Moran Eye Center, University of Utah, Salt Lake City, Utah.
Abstract
PURPOSE: To determine whether reticular pseudodrusen (RPD) confer an increased risk of progression to late-stage age-related macular degeneration (AMD) in fellow eyes of those recently diagnosed with unilateral choroidal neovascularization (CNV). DESIGN: Retrospective study. PARTICIPANTS: Two hundred consecutive participants with CNV secondary to AMD in 1 eye and no signs of late-stage AMD in the fellow eye. METHODS: Clinical examination and comprehensive retinal imaging, including spectral-domain optical coherence tomography, near-infrared reflectance (NIR), and color fundus photography, at baseline and every follow-up visit. MAIN OUTCOME MEASURES: Incidence of geographic atrophy (GA) and CNV in the fellow eye. RESULTS: Mean age ± standard deviation was 77±7 years, and 61% of the cohort were female. Fifty-eight percent (n = 116) had RPD, 68% had drusen of 125 μm or more, 36% had pigmentary changes, 10% had both drusen of 125 μm or more and pigmentary changes, and 17% had only RPD in their fellow eyes. After a mean follow-up of 2.3 years, CNV developed in 36% of patients and GA developed in 14% of patients. Those with RPD demonstrated late-stage AMD (61% vs. 33.4%; P <0.001) and GA (22.4% with RPD vs. 2.4% without RPD; P <0.001) more often. The presence of reticular pseudodrusen was an independent risk factor for the development of GA (hazard ratio [HR], 4.93; P = 0.042), but not for CNV (HR, 1.19; P = 0.500), at least within the follow-up of this study. Both drusen of 125 μm or more and pigmentary changes at baseline were significant risk factors for the development of CNV and GA (HR, 1.96-11.73; P ≤0.020). CONCLUSIONS: Reticular pseudodrusen seem to confer an increased risk of progression to GA, in addition to drusen and pigmentary changes. The presence of RPD needs to be taken into account when discussing a patient's prognosis and planning management.
PURPOSE: To determine whether reticular pseudodrusen (RPD) confer an increased risk of progression to late-stage age-related macular degeneration (AMD) in fellow eyes of those recently diagnosed with unilateral choroidal neovascularization (CNV). DESIGN: Retrospective study. PARTICIPANTS: Two hundred consecutive participants with CNV secondary to AMD in 1 eye and no signs of late-stage AMD in the fellow eye. METHODS: Clinical examination and comprehensive retinal imaging, including spectral-domain optical coherence tomography, near-infrared reflectance (NIR), and color fundus photography, at baseline and every follow-up visit. MAIN OUTCOME MEASURES: Incidence of geographic atrophy (GA) and CNV in the fellow eye. RESULTS: Mean age ± standard deviation was 77±7 years, and 61% of the cohort were female. Fifty-eight percent (n = 116) had RPD, 68% had drusen of 125 μm or more, 36% had pigmentary changes, 10% had both drusen of 125 μm or more and pigmentary changes, and 17% had only RPD in their fellow eyes. After a mean follow-up of 2.3 years, CNV developed in 36% of patients and GA developed in 14% of patients. Those with RPD demonstrated late-stage AMD (61% vs. 33.4%; P <0.001) and GA (22.4% with RPD vs. 2.4% without RPD; P <0.001) more often. The presence of reticular pseudodrusen was an independent risk factor for the development of GA (hazard ratio [HR], 4.93; P = 0.042), but not for CNV (HR, 1.19; P = 0.500), at least within the follow-up of this study. Both drusen of 125 μm or more and pigmentary changes at baseline were significant risk factors for the development of CNV and GA (HR, 1.96-11.73; P ≤0.020). CONCLUSIONS: Reticular pseudodrusen seem to confer an increased risk of progression to GA, in addition to drusen and pigmentary changes. The presence of RPD needs to be taken into account when discussing a patient's prognosis and planning management.
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