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Related Experiment Video

Updated: Mar 27, 2026

Application of Optical Coherence Tomography to a Mouse Model of Retinopathy
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En face OCT in Stargardt disease.

Andrea Sodi1, Dario Pasquale Mucciolo2, Francesca Cipollini1

  • 1Careggi Teaching Hospital , Eye Clinic, University of Florence, Largo Brambilla 3, 50134, Florence, Italy.

Graefe'S Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Fur Klinische Und Experimentelle Ophthalmologie
|January 9, 2016
PubMed
Summary

Enface optical coherence tomography (OCT) effectively visualizes macular structural changes in Stargardt disease (STGD) patients, revealing significant photoreceptor and retinal pigment epithelium atrophy.

Keywords:
DystrophyMaculopathyOCTPhotoreceptorsRetinaStargardt

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Genetics

Background:

  • Stargardt disease (STGD) is a common inherited macular dystrophy.
  • ABCA4 gene mutations are the primary cause of STGD.
  • Understanding STGD's structural progression is crucial for management.

Purpose of the Study:

  • To evaluate macular structural features in STGD patients using enface OCT.
  • To correlate OCT findings with clinical diagnosis and genetic confirmation (ABCA4 mutations).

Main Methods:

  • Enface OCT imaging of the macula in 32 STGD patients (64 eyes).
  • Analysis of multiple OCT slabs: Inner Limiting Membrane (ILM), Retinal Pigment Epithelium (RPE), above-RPE, photoreceptor, and sub-RPE.
  • Comprehensive ophthalmological examination, fundus photography, and auto-fluorescence imaging.

Main Results:

  • Radial folds observed on ILM scans in 12.5% of eyes.
  • Macular alterations in the photoreceptor slab included heterogeneous and homogeneous hypo-reflective areas (11% and 27% of eyes, respectively).
  • Sub-RPE slab showed hyper-reflective abnormalities in 90.6% of eyes; photoreceptor atrophy exceeded RPE atrophy in 96% of eyes.

Conclusions:

  • Enface OCT is a valuable tool for in vivo visualization of STGD structural abnormalities.
  • OCT imaging aids in understanding the distinct pathological changes across retinal layers in STGD.
  • This imaging modality supports clinical management of Stargardt disease.