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Am J Ophthalmol. 2014 Mar;157(3):673-7. doi: 10.1016/j.ajo.2013.12.005. Epub 2013 Dec 7.

Comparison of wide-field fluorescein angiography and 9-field montage angiography in uveitis.

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National Eye Institute, National Institutes of Health, Bethesda, MD.
National Eye Institute, National Institutes of Health, Bethesda, MD. Electronic address:



To compare qualitatively and quantitatively Optos fundus camera fluorescein angiographic images of retinal vascular leakage with 9-field montage Topcon fluorescein angiography (FA) images in patients with uveitis. We hypothesized that Optos images reveal more leakage in patients with uveitis.


Retrospective, observational case series.


Images of all patients with uveitis imaged with same-sitting Optos FA and 9-field montage FA during a 9-month period at a single institution (52 eyes of 31 patients) were graded for the total area of retinal vascular leakage. The main outcome measure was area of fluorescein leakage.


The area of apparent FA leakage was greater in Optos images than in 9-field montage images (median 22.5 mm(2) vs 4.8 mm(2), P < 0.0001). Of the 49 (45%) eyes with gradable photos, 22 had at least 25% more leakage in the Optos image than in the montage image; 2 (4.1%) had at least 25% less leakage in Optos; and 25 (51%) were similar in the 2 modalities. There were 2 eyes that had no apparent retinal vascular leakage in 9-field montage but were found to have apparent leakage in Optos images. Of the 49 eyes, 23 had posterior pole leakage, and of these, 17 (73.9%) showed more posterior pole leakage in the Optos image. A single 200-degree Optos FA image captured a mean 1.50× the area captured by montage photography.


More retinal vascular pathology, in both the periphery and the posterior pole, is seen with Optos FA in patients with uveitis when compared with 9-field montage. The clinical implications of Optos FA findings have yet to be determined.

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