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Detecting Abnormalities in Choroidal Vasculature in a Mouse Model of Age-related Macular Degeneration by Time-course Indocyanine Green Angiography
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A classification system for polypoidal choroidal vasculopathy.

Peter Cackett1, Doric Wong, Ian Yeo

  • 1Singapore Eye Research Institute, Singapore.

Retina (Philadelphia, Pa.)
|October 2, 2008
PubMed
Summary

This study characterizes polypoidal choroidal vasculopathy (PCV) in Chinese patients, finding demographics similar to other Asian populations. A new classification system for PCV based on lesion characteristics is proposed for improved prognosis and management.

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Last Updated: Jun 29, 2026

Detecting Abnormalities in Choroidal Vasculature in a Mouse Model of Age-related Macular Degeneration by Time-course Indocyanine Green Angiography
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Characterization of Vascular Morphology of Neovascular Age-Related Macular Degeneration by Indocyanine Green Angiography

Published on: August 11, 2023

Area of Science:

  • Ophthalmology
  • Medical Research
  • Choroidal Vasculopathy

Background:

  • Polypoidal choroidal vasculopathy (PCV) is a subtype of age-related macular degeneration.
  • Understanding PCV demographics and characteristics is crucial for effective management.

Purpose of the Study:

  • To detail the demographic and clinical features of PCV in Chinese patients.
  • To introduce a novel classification system for PCV.

Main Methods:

  • Retrospective analysis of 138 eyes from 123 PCV patients.
  • Ophthalmologic examinations including fundus photography and indocyanine green angiography.
  • Classification based on indocyanine green angiography findings.

Main Results:

  • Mean patient age was 68.3 years, with 62.4% males.
  • PCV was unilateral in 87.8% of cases; 22.8% had age-related maculopathy in the fellow eye.
  • Lesion characteristics varied in size, formation (cluster, single, string), and location (extrafoveal, subfoveal, juxtafoveal, peripapillary).

Conclusions:

  • PCV demographics and fellow eye findings align with existing reports in Asian populations.
  • A new PCV classification system is proposed, incorporating polyp size, location, formation, and number of areas.
  • This system may facilitate future clinical studies, prognosis, and management of PCV.