Venous beading in two or more quadrants might not be a sensitive grading criterion for severe nonproliferative diabetic retinopathy.
Ling ChenXiongze ZhangFeng WenPublished in: Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie (2018)
Our study suggested that VB in two or more quadrants might not be a sensitive grading criterion for severe NPDR among a Chinese population with type 2 diabetes. Nevertheless, VB has a great specificity to define an advanced form of DR.