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Demographic and Multimodal Imaging Features of Macular Telangiectasia Type 2: Korean Macular Telangiectasia Type 2 Study - Report No. 2

 Young Ho Kim  ;  Yoo-Ri Chung  ;  Jaeryung Oh  ;  Seong-Woo Kim  ;  Christopher Seungkyu Lee  ;  Cheolmin Yun  ;  Boram Lee  ;  So Min Ahn  ;  Eun Young Choi  ;  Sungmin Jang  ;  Kihwang Lee 
 OPHTHALMIC EPIDEMIOLOGY, Vol.28(5) : 436-443, 2021-10 
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Cross-Sectional Studies ; Demography ; Female ; Fluorescein Angiography ; Humans ; Multimodal Imaging ; Republic of Korea / epidemiology ; Retinal Telangiectasis* / diagnosis ; Retrospective Studies ; Tomography, Optical Coherence
Macular telangiectasia type 2 ; multicentre study
Purpose: To investigate the demographic and multimodal imaging features of macular telangiectasia (MacTel) type 2 in Korea and their relationship with visual acuity and the clinical stage.Methods: A retrospective multicentre cross-sectional study was conducted in six tertiary hospitals in Korea and the study included 84 patients. Demographic data and imaging data of fundus photography, fundus autofluorescence (FAF), confocal blue-light reflectance (CBR), fluorescein angiography (FAG), and optical coherence tomography (OCT) were collected.Results: The Korean patients with MacTel type 2 were predominantly female (75%), and the mean logMAR visual acuity was 0.282 ± 0.280 at initial presentation. Most commonly presented signs were the loss of retinal transparency in fundus photographs (68.3%); increased autofluorescence in FAF (83.6%); increased blue reflectance involving the centre in CBR (68.0%); telangiectatic vessels in FAG (88.2%); and hyporeflective cavities in OCT (77.7%). The eyes diagnosed in the first half of the study period (2009-2014) showed a tendency to be diagnosed at more advanced severe stages than those diagnosed in the second half of the study period (2015-2019), using new severity scales based on FAG, FAF and OCT findings.Conclusion: The clinical features of MacTel type 2 in Korean patients assessed by newer imaging modalities suggest that Korean patients and the Caucasian-dominant population show similar presentations. This study showed that MacTel type 2 can be diagnosed in the earlier phase of the disease by using new imaging modalities and through better understanding of the disease.
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1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Christopher Seungkyu(이승규) ORCID logo https://orcid.org/0000-0001-5054-9470
Choi, Eun Young(최은영) ORCID logo https://orcid.org/0000-0002-1668-6452
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