IIDA Tomohiro    Department   School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine    Position   Professor and Division head
Article types	Original article
Language	English
Peer review	Peer reviewed
Title	Characteristics of treatment-naïve quiescent choroidal neovascularization detected by optical coherence tomography angiography in patients with age-related macular degeneration.
Journal	Formal name：Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie Abbreviation：Graefes Arch Clin Exp Ophthalmol ISSN code：1435702X/0721832X
Domestic / Foregin	Foregin
Volume, Issue, Page	259(9),pp.2671-2677
Author and coauthor	Fukushima Akira, Maruko Ichiro, Chujo Kyoko, Hasegawa Taiji, Arakawa Hisaya, Iida Tomohiro
Publication date	2021/09
Summary	PURPOSE:To determine the characteristics of eyes with treatment-naïve quiescent choroidal neovascularization (CNV) detected by optical coherence tomography angiography (OCTA).METHODS:Thirty-eight eyes of 37 treatment-naïve consecutive patients (30 men, 7 women, average 69.8 years) were studied. Quiescent CNVs were detected by OCTA (RTVue XR Avanti, Optovue, Fremont, CA) in all eyes. Swept-source OCT (SS-OCT; DRI-OCT, Topcon, Japan) confirmed the absence of exudation. The symptoms, visual acuity, CNV size, and status of the fellow eye were evaluated. Patients were followed longitudinally and the length of follow-up period and development of exudation were recorded for each patient. We also investigated patients' medical records from their referral hospitals in search of prior exudation.RESULTS:All eyes with quiescent CNV were diagnosed at the initial visit with sub-retinal pigment epithelium CNVs, i.e., type 1 CNV, from the OCT and OCTA images. Prior exudation was confirmed in 15 eyes (39.5%) from their medical records of the referral hospitals. Symptoms were present in 18 eyes (47.3%). An exudative CNV was present in 12 of the fellow eyes. Exudation developed in 12 eyes (31.6%) during an average follow-up period of 25.1 months. One-half of the eyes had a prior exudation. The CNV at the baseline in eyes that developed exudation during the follow-up period was larger than eyes without exudation; however, the difference was not significant (0.59±0.47 vs 0.48±0.32 mm2, P = 0.50).CONCLUSION:Quiescent CNVs will develop exudation in approximately 30% of the eyes during a mean 2-year follow-up period. These findings must be remembered when investigating quiescent CNVs that could not be distinguished from eyes with former active CNV and naturally deactivate CNV.
DOI	10.1007/s00417-021-05127-x
PMID	33649916