Collateral circulation in hemicentral retinal vein occlusion.
The perchance occurrence of a hemicentral retinal vein occlusion in an eye with a lightly pigmented fundus allowed us the opportunity to observe the development and flow dynamics of collateral circulation. We are able to demonstrate an optic disc collateral draining into a choroidal vein, a finding which to our knowledge had previously only been documented histologically. The collateral circulation developed slowly over many months and was not rapid enough to prevent chronic microcystic macular changes.
D000368:Aged; D003097:Collateral Circulation; D005451:Fluorescein Angiography; D005654:Fundus Oculi; D006801:Humans; D008297:Male; D012170:Retinal Vein Occlusion / Q000473:pathology / Q000503:physiopathology*