PMID- 24983793 OWN - NLM STAT- MEDLINE DCOM- 20141106 LR - 20220310 IS - 1879-1891 (Electronic) IS - 0002-9394 (Linking) VI - 158 IP - 4 DP - 2014 Oct TI - Optical coherence tomography-based measurement of drusen load predicts development of advanced age-related macular degeneration. PG - 757-761.e1 LID - S0002-9394(14)00382-1 [pii] LID - 10.1016/j.ajo.2014.06.021 [doi] AB - PURPOSE: To determine whether baseline drusen load, as measured using spectral-domain optical coherence tomography (SD OCT), is a useful predictor of development of advanced age-related macular degeneration (AMD). DESIGN: Retrospective cohort study. METHODS: setting: Academic clinical practice. study population: All patients with non-neovascular AMD and no retinal pigment epithelial (RPE) atrophy at baseline who were seen between 2007 and 2012 in a single academic retina practice. A minimum of 1 year of follow-up was required. observation: Drusen load (area and volume) was assessed using automated SD OCT software algorithms. main outcome measure: RPE atrophy area, assessed using an automated SD OCT software algorithm, and the development of neovascular AMD. RESULTS: Eighty-three patients met the inclusion criteria with a mean age of 80 years and a mean follow-up time of 2.8 years. Repeated-measures analysis of variance showed an association between drusen area (P = .005) and drusen volume (P = .001) and the development of RPE atrophy. We also found an association between drusen area (P = .001) and drusen volume (P = .001) and the development of neovascular AMD. CONCLUSIONS: Drusen load, as measured using SD OCT, is associated with the development of RPE atrophy and neovascular AMD. SD OCT assessments of drusen load are simple and practical measurements that may be useful in stratifying the risk of developing advanced AMD. These measurements have potential applications in both routine clinical care and clinical trials. CI - Copyright (c) 2014 Elsevier Inc. All rights reserved. FAU - Nathoo, Nawaaz A AU - Nathoo NA AD - Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada. FAU - Or, Chris AU - Or C AD - Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada. FAU - Young, Mei AU - Young M AD - Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada. FAU - Chui, Lica AU - Chui L AD - Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada. FAU - Fallah, Nader AU - Fallah N AD - Rick Hansen Institute, Vancouver, British Columbia, Canada. FAU - Kirker, Andrew W AU - Kirker AW AD - Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada. FAU - Albiani, David A AU - Albiani DA AD - Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada. FAU - Merkur, Andrew B AU - Merkur AB AD - Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada. FAU - Forooghian, Farzin AU - Forooghian F AD - Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada. Electronic address: farzin.forooghian@gmail.com. LA - eng PT - Journal Article DEP - 20140628 PL - United States TA - Am J Ophthalmol JT - American journal of ophthalmology JID - 0370500 SB - IM MH - Aged, 80 and over MH - Atrophy MH - Cohort Studies MH - Disease Progression MH - Female MH - Follow-Up Studies MH - Geographic Atrophy/*diagnosis MH - Humans MH - Male MH - Retinal Drusen/*diagnosis MH - Retinal Pigment Epithelium/*pathology MH - Retrospective Studies MH - Tomography, Optical Coherence/*methods MH - Wet Macular Degeneration/*diagnosis EDAT- 2014/07/02 06:00 MHDA- 2014/11/07 06:00 CRDT- 2014/07/02 06:00 PHST- 2014/03/20 00:00 [received] PHST- 2014/06/23 00:00 [revised] PHST- 2014/06/23 00:00 [accepted] PHST- 2014/07/02 06:00 [entrez] PHST- 2014/07/02 06:00 [pubmed] PHST- 2014/11/07 06:00 [medline] AID - S0002-9394(14)00382-1 [pii] AID - 10.1016/j.ajo.2014.06.021 [doi] PST - ppublish SO - Am J Ophthalmol. 2014 Oct;158(4):757-761.e1. doi: 10.1016/j.ajo.2014.06.021. Epub 2014 Jun 28.