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Green-light fundus autofluorescence in diabetic macular edema

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Author(s): Lukas Reznicek

Journal: International Journal of Ophthalmology
ISSN 2222-3959

Volume: 6;
Issue: 1;
Start page: 75;
Date: 2013;
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Keywords: diabetic macular edema | fundus autofluorescence | optical coherence tomography

ABSTRACT
AIM:To evaluate the role of central green-light fundus autofluorescence (FAF) in diabetic macular edema (DME).METHODS: A consecutive series of 92 study eyes with diabetic retinopathy were included. Out of those, 51 diabetic eyes had DME and were compared to 41 diabetic eyes without DME. In all subjects, green-light FAF images were obtained, quantified and classified into various FAF patterns. Cross-sectional optical coherence tomography (OCT) scans were obtained for evaluation of Inner/Outer segment (IS/OS) layer integrity, measurements of central RPE-IS/OS layer thickness as well as classification of DME into various subtypes.RESULTS:Mean central green-light FAF intensity of eyes with DME (1.289±0.140)log did not significantly differ from diabetic patients without DME (1.317±0.137)log. Most classifiable FAF patterns were seen in patients with cystoid DME. Mean central retinal thickness (CRT) of all study eyes with DME was (501.9±112.4)µm compared to (328.2±27.0)µm in diabetic patients without DME. Patients with DME had significantly more disrupted photoreceptor IS/OS layers than diabetic patients without DME (28/51 vs 5/41, P
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