Which lab and imaging studies are indicated in the workup of diabetic retinopathy?

Updated: Sep 02, 2021
  • Author: Abdhish R Bhavsar, MD; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Laboratory studies of HbA1c levels are important in the long-term follow-up care of patients with diabetes and diabetic retinopathy.

Imaging studies used in the diagnosis of diabetic retinopathy include the following:

  • Fluorescein angiography: Microaneurysms appear as pinpoint, hyperfluorescent lesions in early phases of the angiogram and typically leak in the later phases of the test

  • Optical coherence tomography scanning: Administered to determine the thickness of the retina and the presence of swelling within the retina, as well as vitreomacular traction

  • B-scan ultrasonography

See Workup for more detail.

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