Optical coherence tomography angiography reveals progressive worsening of retinal vascular geometry in diabetic retinopathy and improved geometry after panretinal photocoagulation.

PLoS One · 2019 · PMC6936773 · PMID 31887149

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More recent studies have used optical coherence tomography angiography (OCTA) to study the geometry of the macular microvascular network in DR.[ 20 – 22 ] Lee et al[ 22 ] reported an increasing trend in vessel tortuosity in both the superficial and deep capillary plexuses (SCP and DCP) with increasing severity of DR.

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