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Retinal blood flow analysis using intraoperative video fluorescein angiography combined with optical fiber-free intravitreal surgery system.

Abstract：

PURPOSE:To report a new method to perform intraoperative video fluorescein angiography (VFA) using an optical fiber-free intravitreal surgery system (OFFISS) and retinal blood flow analysis during surgery. DESIGN:Observational case series. METHODS:Four eyes of four patients with macular edema as a result of branch retinal vein occlusion underwent vitrectomy and intraoperative VFA with a bolus of 0.8 ml fluorescein dye. The segmental blood flow was calculated using dye dilution technique. Intraocular pressure was maintained at 15 mm Hg. RESULTS:The VFA was clearly recorded with stable excitation light and very little eye movement under retrobulbar anesthesia. The segmental blood flow of the affected vessels (6.1 +/- 1.2 pixel(2)/s) was significantly lower than that of the healthy vessels (17.9 +/- 7.9 pixel(2)/s) (P < .05). CONCLUSION:The combination of VFA and OFFISS can facilitate intraoperative VFA, and may be useful for evaluating retinal blood flow during surgery.

journal_name

Am J Ophthalmol

journal_title

American journal of ophthalmology

authors

Horio N,Horiguchi M

doi

10.1016/j.ajo.2004.06.079

subject

Has Abstract

pub_date

2004-12-01 00:00:00

pages

1082-3

issue

6

eissn

0002-9394

issn

1879-1891

pii

S0002-9394(04)00829-3

journal_volume

138

pub_type

杂志文章

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