الفهرس 
Blood supply of the retina
Diabetic maculopathyOnly 14 pages are availabe for public view
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Abstract
Summary and conclusion
Diabetic macular ischemia (DMI) is a condition that didn’t
receive enough attention despite its important impact. The presence of
DMI in the context of diabetic retinopathy and maculopathy affects
visual acuity and changes management decisions.
FFA is – so far - the gold standard for diagnosis and grading of
DMI, It was used in this study as a method of patients enrollment.
However, FFA has its hazards and drawbacks especially being
invasive, non-repeatable, difficult Data quantification and that
associated leakage can obscure the presence of ischemia. OCTA avoids
many of these hazards and drawbacks, despite having its own ones,
especially its artifacts and the relatively smaller field of view. It has the
ability to detect DMI and its findings can be quantified.
This study was a cross sectional study that enrolled patients
diagnosed with DMI using FFA (20 eyes), then the findings of their
OCT and OCTA images were examined, analyzed for correlation. In
addition to this group of patients, the study also involved a smaller
group of normal eyes (10 eyes) as a control group.
In this study, OCTA was able to detect macular ischemia in all
the enrolled patients and in some cases macular ischemia was more
evident on OCTA imaging but the study didn’t try to compare OCTA to
FFA. The two OCTA parameters that were used in this study to
evaluate the degree of macular perfusion (FAZ area and VAD for both
SCP and DCP) were found to have a statistically significant difference