Surgical chorioretinal venous anastomosis for ischemic central retinal vein occlusion.
OBJECTIVE
To report results of a pilot study to create chorioretinal venous anastomosis (CRVA) in eyes with ischemic central retinal vein occlusion (CRVO) via a pars plana approach.


METHODS
Five eyes of 5 patients with ischemic CRVO underwent surgical CRVA. Following pars plana vitrectomy, the posterior hyaloid face was removed, and slit-like incisions were made with a microvitreoretinal blade adjacent to a major retinal vein in each quadrant. Small pieces of 50 Mersilene sutures (Ethicon, Somerville, NJ) were positioned over the vein and inserted into these incisions to promote vascularization. Panretinal photocoagulation was applied.


RESULTS
A functional CRVA site was noted at 10 of 16 attempted sites (4 sites in 1 patient could not be evaluated because of cataract). Minor fibrous proliferation was noted at CRVA sites in all eyes. Optic atrophy developed in 3 eyes. Visual acuity improved in 3 eyes, remained unchanged in 1, and deteriorated in 1 eye after a mean follow up of 13.4 months (range 8-20 months).


CONCLUSIONS
Surgically induced CRVA may improve the prognosis in some eyes with ischemic CRVO.
Peyman
G A
GA
LSU Eye Center, Louisiana State University Medical Center School of Medicine, New Orleans 70112-2234, USA.
Kishore
K
K
Conway
M D
MD
D000368:Aged; D000369:Aged, 80 and over; D000714:Anastomosis, Surgical / Q000379:methods; D002829:Choroid / Q000098:blood supply*; D005260:Female; D005451:Fluorescein Angiography; D005654:Fundus Oculi; D006801:Humans; D007511:Ischemia / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D018919:Neovascularization, Physiologic; D013508:Ophthalmologic Surgical Procedures; D009896:Optic Atrophy / Q000209:etiology; D010865:Pilot Projects; D012169:Retinal Vein / Q000601:surgery*; D012170:Retinal Vein Occlusion / Q000601:surgery*; D014792:Visual Acuity; D014821:Vitrectomy