PMID- 37803144 OWN - NLM STAT- MEDLINE DCOM- 20240311 LR - 20240311 IS - 1476-5454 (Electronic) IS - 0950-222X (Print) IS - 0950-222X (Linking) VI - 38 IP - 4 DP - 2024 Mar TI - Macular neovascularization and polypoidal choroidal vasculopathy: phenotypic variations, pathogenic mechanisms and implications in management. PG - 659-667 LID - 10.1038/s41433-023-02764-w [doi] AB - Advances in imaging have led to improved ability to characterize variations in clinical sub-phenotypes of macular neovascularization (MNV) in Age-related macular degeneration (AMD). Polypoidal choroidal vasculopathy (PCV) was initially described based on characteristic features observed in indocyanine green angiography (ICGA) and was thought to be a distinct entity from AMD. However, subsequent careful observations based on confocal scanning laser ophthalmoscopy-based ICGA, optical coherence tomography (OCT) and OCT angiography have led researchers to appreciate similarities between PCV lesion and type 1 MNV in typical neovascular AMD. Concurrently, clinical trials have shown that anti-VEGF monotherapy can achieve favourable visual outcome in the majority of eyes with PCV. These learnings have led to a shift in the way PCV is managed over the past decade. Recent studies have supported the use of non-ICGA based imaging modality to screen for PCV and the adoption of anti-VEGF monotherapy as initial therapy for PCV. A focus of recent research has been in the understanding of the role of choroidal alterations in the pathogenesis of PCV. The concept of pachychoroid in leading to outer retinal ischemia has garnered increasing support. Future research in this area should evaluate the potential of choroidal morphology in guiding personalized therapy in PCV. CI - (c) 2023. The Author(s). FAU - Cheung, Chui Ming Gemmy AU - Cheung CMG AUID- ORCID: 0000-0003-3358-3516 AD - Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore. gemmy.cheung.c.m@singhealth.com.sg. AD - Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore, Singapore. gemmy.cheung.c.m@singhealth.com.sg. LA - eng GR - NMRC/LCG/004/2018/MOH | National Medical Research Council (NMRC)/ PT - Journal Article PT - Review DEP - 20231006 PL - England TA - Eye (Lond) JT - Eye (London, England) JID - 8703986 RN - 0 (Angiogenesis Inhibitors) RN - 0 (Vascular Endothelial Growth Factor A) RN - IX6J1063HV (Indocyanine Green) SB - IM MH - Humans MH - *Choroidal Neovascularization/diagnosis/drug therapy/etiology MH - Polypoidal Choroidal Vasculopathy MH - Angiogenesis Inhibitors/therapeutic use MH - Fluorescein Angiography/methods MH - Vascular Endothelial Growth Factor A/therapeutic use MH - Visual Acuity MH - *Wet Macular Degeneration/drug therapy MH - Choroid/pathology MH - Biological Variation, Population MH - Tomography, Optical Coherence/methods MH - *Polyps/diagnosis/drug therapy/complications MH - Retrospective Studies MH - Indocyanine Green PMC - PMC10920817 COIS- CMGC reports grants, personal fees and non-financial support from Bayer, Roche, Boehringer Ingelheim, Zeiss, Novartis, Topcon, Iveric, Retimark. EDAT- 2023/10/07 00:41 MHDA- 2024/03/11 06:42 PMCR- 2023/10/06 CRDT- 2023/10/06 23:28 PHST- 2023/08/30 00:00 [received] PHST- 2023/09/18 00:00 [accepted] PHST- 2023/09/07 00:00 [revised] PHST- 2024/03/11 06:42 [medline] PHST- 2023/10/07 00:41 [pubmed] PHST- 2023/10/06 23:28 [entrez] PHST- 2023/10/06 00:00 [pmc-release] AID - 10.1038/s41433-023-02764-w [pii] AID - 2764 [pii] AID - 10.1038/s41433-023-02764-w [doi] PST - ppublish SO - Eye (Lond). 2024 Mar;38(4):659-667. doi: 10.1038/s41433-023-02764-w. Epub 2023 Oct 6.