Dilation of the minor arterial circle of the iris preceding rubeosis iridis during retinal vein occlusion.
OBJECTIVE
To report in four patients with retinal vein occlusion the presence of biomicroscopically visible circulation in the minor arterial circle of the iris, preceding rubeosis iridis in two cases.


METHODS
Retrospective observational case series.


METHODS
Four patients with ischemic type of central or hemi-central retinal vein occlusion seen at a single center.


RESULTS
Dilation of the minor arterial circle remnants with biomicroscopically visible circulation was observed in four eyes of four adult patients with severe retinal ischemia secondary to retinal vein occlusion and preceded the occurrence of anterior segment neovascularization in two cases.


CONCLUSIONS
In patients with ischemic retinal vein occlusion, the clinical finding of a dilation of the minor arterial circle may indicate the necessity of a closer follow-up to make a timely decision on panretinal photocoagulation.
Paques
Michel
M
Department of Ophthalmology of the Fondation Ophtalmologique Rothschild, Paris, France. michel.paques@laposte.net
Girmens
Jean-François
JF
Rivière
Eva
E
Sahel
José
J
D000368:Aged; D001158:Arteries / Q000473:pathology*; D004108:Dilatation, Pathologic; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D007498:Iris / Q000098:blood supply*; D007499:Iris Diseases / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D007511:Ischemia / Q000175:diagnosis / Q000209:etiology / Q000601:surgery; D017075:Laser Coagulation; D008297:Male; D008875:Middle Aged; D012170:Retinal Vein Occlusion / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D012171:Retinal Vessels / Q000473:pathology* / Q000601:surgery; D012189:Retrospective Studies