Abstract

During the past 15 years, new treatment paradigms for neovascular age-related macular degeneration (nvAMD) have evolved due to the advent of intravitreal anti-vascular endothelial growth factor (VEGF) therapy and rapid advances in retinal imaging. Recent publications describe eyes with type 1 macular neovascularization (MNV) as showing more resistance to macular atrophy than eyes with other lesion types. We sought to explore whether the perfusion status of the native choriocapillaris (CC) surrounding type 1 MNV influences its pattern of growth. To evaluate this effect, we analyzed a case series of 22 eyes from 19 nvAMD patients with type 1 MNV exhibiting growth on swept-source optical coherence tomography angiography (SS-OCTA) over a minimum follow-up of 12 months. We observed an overall weak correlation between type 1 MNV growth and CC flow deficits (FDs) average size (τ = 0.17, 95% CI [− 0.20, 0.62]) and a moderate correlation with CC FD % (τ = 0.21, 95% CI [− 0.16, 0.68]). Type 1 MNV was located beneath the fovea in most of the eyes (86%) and median visual acuity was 20/35 Snellen equivalent. Our results support that type 1 MNV recapitulates areas of CC blood flow impairment while serving to preserve foveal function.

Details

Title
Quantitative assessment of choriocapillaris flow deficits and type 1 macular neovascularization growth in age-related macular degeneration
Author
Cabral, Diogo 1 ; Fradinho, Ana C. 2 ; Zhang, Yi 3 ; Zhou, Hao 3 ; Ramtohul, Prithvi 4 ; Ramakrishnan, Meera S. 4 ; Pereira, Telmo 2 ; Wang, Ruikang K. 5 ; Freund, K. Bailey 4 

 Vitreous Retina Macula Consultants of New York, New York, USA (GRID:grid.497655.c); iNOVA4Health, NOVA Medical School I Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal (GRID:grid.10772.33) (ISNI:0000000121511713); NYU Grossman School of Medicine, Department of Ophthalmology, New York, USA (GRID:grid.137628.9) (ISNI:0000 0004 1936 8753) 
 iNOVA4Health, NOVA Medical School I Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal (GRID:grid.10772.33) (ISNI:0000000121511713) 
 University of Washington, Department of Bioengineering, Seattle, USA (GRID:grid.34477.33) (ISNI:0000000122986657) 
 Vitreous Retina Macula Consultants of New York, New York, USA (GRID:grid.497655.c); NYU Grossman School of Medicine, Department of Ophthalmology, New York, USA (GRID:grid.137628.9) (ISNI:0000 0004 1936 8753) 
 University of Washington, Department of Bioengineering, Seattle, USA (GRID:grid.34477.33) (ISNI:0000000122986657); University of Washington, Department of Ophthalmology, Seattle, USA (GRID:grid.34477.33) (ISNI:0000000122986657) 
Pages
8572
Publication year
2023
Publication date
2023
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2819568630
Copyright
© The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.