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Verteporfin photodynamic therapy for anterior segment neovascularization secondary to ischaemic central retinal vein occlusion.

Parodi MB, Iacono P, Ravalico G

Eye Clinic, Azienda Ospedaliero-University of Trieste, Trieste, Italy. maubp@yahoo.it

PURPOSE: To evaluate the efficacy of photodynamic therapy (PDT) with verteporfin for anterior segment neovascularizations (ASNVs) in patients affected by ischaemic form of central retinal vein occlusion (CRVO). METHODS: Prospective non-comparative case series including 10 consecutive patients (10 eyes) affected by ischaemic CRVO. Main outcome measure was the obliteration of ASNV. RESULTS: One month after PDT, biomicroscopic examination showed partial obliteration of iris new vessels and complete closure of angle neovascularization. Iris fluorescein angiography performed 1 week after treatment showed partial closure of the iris new vessels with no evidence of leakage in the late phases. During the subsequent examinations, a partial reopening of the iris and angle new vessels in association with dye leakage on fluorescein angiography was evident. In any case, the fluorescein leakage turned out to be still reduced with respect to the baseline aspects. CONCLUSIONS: Our results show that PDT with verteporfin can partially obliterate ASNVs in eyes affected by ischaemic CRVO preventing from the evolution towards advanced stages of neovascular glaucoma, but is not effective in cases with complete angle synechial closure.

Published 16 April 2008 in Clin Experiment Ophthalmol, 36(3): 232-7.
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