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2018 ; 8
(1
): 5355
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Relationship between the morphology of the foveal avascular zone, retinal
structure, and macular circulation in patients with diabetes mellitus
#MMPMID29599467
Bates NM
; Tian J
; Smiddy WE
; Lee WH
; Somfai GM
; Feuer WJ
; Shiffman JC
; Kuriyan AE
; Gregori NZ
; Kostic M
; Pineda S
; Cabrera DeBuc D
Sci Rep
2018[Mar]; 8
(1
): 5355
PMID29599467
show ga
Diabetic Retinopathy (DR) is an extremely severe and common degenerative disease.
The purpose of this study was to quantify the relationship between various
parameters including the Foveal Avascular Zone (FAZ) morphology, retinal layer
thickness, and retinal hemodynamic properties in healthy controls and patients
with diabetes mellitus (DM) with and with no mild DR (MDR) using Spectral-Domain
Optical Coherence Tomography (Spectralis SDOCT, Heidelberg Engineering GmbH,
Germany) and the Retinal Function Imager (Optical Imaging, Ltd., Rehovot,
Israel). Our results showed a higher FAZ area and diameter in MDR patients. Blood
flow analysis also showed that there is a significantly smaller venous blood flow
velocity in MDR patients. Also, a significant difference in roundness was
observed between DM and MDR groups supporting the development of asymmetrical FAZ
expansion with worsening DR. Our results suggest a potential anisotropy in the
mechanical properties of the diabetic retina with no retinopathy that may trigger
the FAZ elongation in a preferred direction resulting in either thinning or
thickening of intraretinal layers in the inner and outer segments of the retina
as a result of autoregulation. A detailed understanding of these relationships
may facilitate earlier detection of DR, allowing for preservation of vision and
better clinical outcomes.