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Pigmentary abnormality without significant drusen as a risk factor for late age-related macular degeneration

 Junwon Lee  ;  Hyun Goo Kang  ;  Hae Rang Kim  ;  Christopher Seungkyu Lee  ;  Min Kim  ;  Sung Soo Kim  ;  Suk Ho Byeon 
 SCIENTIFIC REPORTS, Vol.12(1) : 769, 2022-01 
Journal Title
Issue Date
Aged ; Female ; Follow-Up Studies ; Humans ; Hypopigmentation / complications* ; Incidence ; Macular Degeneration / epidemiology ; Macular Degeneration / etiology* ; Macular Degeneration / pathology* ; Male ; Middle Aged ; Optic Disk Drusen ; Pigmentation* ; Retinal Neovascularization ; Retrospective Studies ; Risk Factors ; Time Factors
We investigated the incidence and risk factors of late age-related macular degeneration (AMD) in the fellow eye (FE) without significant drusen of patients with unilateral exudative macular neovascularization (MNV). In this retrospective study, 241 eligible patients who were followed-up for more than 3 years were enrolled. We analyzed the incidence and hazard ratios (HRs) of late AMD in the FE according to demographic and ophthalmologic variables. Hypopigmentation on color fundus photography (CFP) corresponds to shallow irregular RPE elevation (SIRE), so-called "double-layer sign" and/or "attenuation or disruption of RPE and/or ellipsoid zone" on OCT. The 5-year incidence of FE exudative MNV conversion was 8.6%. The 5-year incidence of FE exudative MNV of large hypopigmentation (≥ 0.5 disc area; DA) and small hypopigmentation (< 0.5 DA) on CFP, and SIRE (≥ 1000 µm) and small RPE elevation (< 1000 µm) on OCT were 36.2%, 14.2%, 55.0%, and 15.6%, respectively. The multivariate Cox proportional hazard model revealed that large hypopigmentation, small hypopigmentation, SIRE, and small RPE elevation showed HRs of 23.230, 8.037, 132.589, and 41.823 for FE exudative MNV occurrence, respectively. Hypopigmentation on CFP and SIRE on OCT could represent the same lesion. Even small hypopigmentation and small RPE elevation were significant risk factors for progression to exudative MNV.
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1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Hyun Goo(강현구) ORCID logo https://orcid.org/0000-0001-8359-9618
Kim, Min(김민) ORCID logo https://orcid.org/0000-0003-1873-6959
Kim, Sung Soo(김성수) ORCID logo https://orcid.org/0000-0002-0574-7993
Byeon, Suk Ho(변석호) ORCID logo https://orcid.org/0000-0001-8101-0830
Lee, Christopher Seungkyu(이승규) ORCID logo https://orcid.org/0000-0001-5054-9470
Lee, Jun Won(이준원) ORCID logo https://orcid.org/0000-0003-0543-7132
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