Angioarchitecture of the Human Choroid

Shin Yoneya, Mark O M Tso

Research output: Contribution to journalArticle


The angioarchitecture of the human choroid was studied by corrosion vascular casts and scanning electron microscopy. The relationship of the large choroidal arteries and veins, medium-sized arteries and veins, precapillary arterioles and postcapillary venules, and the choriocapillaris is described. At the posterior pole, a lobular arrangement of the choriocapillaris is seen. At the equatorial area, the capillaries run a more direct course, joining the precapillary arterioles to the capillary venules in a spindle-shaped segment of the choroidal vasculature. At the periphery, the choroidal arterioles and venules take a parallel course, with the choriocapillaris joining the adjacent arterioles and venules at a right angle and appearing in a ladder pattern. The regional variation of the angioarchitecture of the human choroid provides supporting evidence for the unique regional characteristics of choroidal blood flow.

Original languageEnglish (US)
Pages (from-to)681-687
Number of pages7
JournalArchives of Ophthalmology
Issue number5
Publication statusPublished - 1987
Externally publishedYes


ASJC Scopus subject areas

  • Ophthalmology

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