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Related Experiment Video

Updated: Jan 12, 2026

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Adaptive Optics Imaging in Diabetic Retinopathy: A Comprehensive Review.

Andrada-Elena Mirescu1, Dan George Deleanu2,3, George Baltă2

  • 1"Ovidius" University of Constanţa, Constanţa, Romania.

Romanian Journal of Ophthalmology
|November 5, 2025
PubMed
Summary
This summary is machine-generated.

Adaptive optics (AO) imaging reveals early retinal changes in diabetic retinopathy (DR). This technology enhances understanding of cellular and vascular alterations for improved diagnosis and monitoring.

Keywords:
AIR = arteriolar index ratiosAO = adaptive opticsAOSLO = adaptive optics scanning laser ophthalmoscopyCFD = computational fluid dynamicsCOST = cone outer segment tipsDCP = deep capillary plexusDME = diabetic macular edemaDR = diabetic retinopathyDRIL = disorganization of the retinal inner layersFA = fluorescein angiographyHPi = heterogeneity packing indexIS/ OS = with inner segment/ outer segmentLD = lumen diameterMAs = microaneurysmsMBR = mean blur rateNPDR = non-proliferative diabetic retinopathyOCTA = optical coherence tomography angiographyPDR = proliferative diabetic retinopathyRG = red-greenRS = retinal sensitivitySD-OCT = spectral domain optical coherence tomographyT1D = type 1 diabetesTD = vessel diameterWCSA = wall cross-sectional areaWLR = wall-to-lumen ratioWT = wall thicknessYB = yellow-blueadaptive opticsconesdiabetic retinopathywall-to-lumen ratio

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Diabetology

Background:

  • Diabetic retinopathy (DR) is a leading cause of blindness globally, stemming from diabetes complications.
  • DR presents in non-proliferative and proliferative forms, with neovascularization characterizing the latter.
  • Adaptive optics (AO) imaging offers high-resolution, in vivo visualization of retinal microstructures, crucial for understanding disease pathology.

Purpose of the Study:

  • To review the application of adaptive optics (AO) imaging in assessing diabetic retinopathy (DR).
  • To synthesize findings on AO imaging of cone photoreceptors, retinal vasculature, and clinical signs in DR.
  • To evaluate AO's role in understanding DR mechanisms and guiding clinical practice.

Main Methods:

  • A comprehensive PubMed search was performed for studies on diabetic retinopathy and adaptive optics before August 1, 2025.
  • The review focused on studies utilizing AO imaging to evaluate cone photoreceptors, retinal vasculature, and clinical DR signs.
  • Forty-two studies were included in this review.

Main Results:

  • AO imaging detected microstructural changes in cone photoreceptors across various DR stages, correlating with other imaging and functional tests.
  • Studies revealed capillary-level vascular alterations associated with DR severity and diabetic macular edema (DME).
  • AO identified specific clinical signs of DR, such as microaneurysms and hard exudates, and assessed blood flow.

Conclusions:

  • Adaptive optics imaging demonstrates progressive alterations in photoreceptors and microvasculature in diabetic retinopathy.
  • AO provides valuable insights into cellular and vascular changes, aiding in early diagnosis and monitoring of DR.
  • AO imaging enhances the understanding of retinal microarchitecture in DR, supporting its clinical utility in diagnosis, monitoring, and prognosis.