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Quantitative Fundus Autofluorescence for the Evaluation of Retinal Diseases
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Lessons learned from quantitative fundus autofluorescence.

Janet R Sparrow1, Tobias Duncker2, Kaspar Schuerch2

  • 1Department of Ophthalmology, Columbia University, New York, NY, USA; Department of Pathology and Cell Biology, Columbia University, New York, NY, USA.

Progress in Retinal and Eye Research
|September 1, 2019
PubMed
Summary
This summary is machine-generated.

Quantitative fundus autofluorescence (qAF) measures retinal autofluorescence intensity using a confocal scanning laser. This non-invasive technique aids in diagnosing and monitoring retinal diseases by analyzing autofluorescence patterns.

Keywords:
ABCA4Acute zonal occult outer retinopathyAge-related macular degenerationConfocal scanning laser ophthalmoscopyFundusFundus autofluorescenceQuantitative fundus autofluorescenceRecessive stargardt diseaseRetinaRetinitis pigmentosa

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Biophotonics

Background:

  • Quantitative fundus autofluorescence (qAF) is a non-invasive imaging technique.
  • It utilizes a confocal scanning laser platform to measure retinal autofluorescence.
  • Autofluorescence originates from retinaldehyde-adducts in photoreceptor and retinal pigment epithelial cells.

Purpose of the Study:

  • To provide a comprehensive summary of qAF principles and practices.
  • To highlight the diagnostic and monitoring capabilities of qAF in retinal disorders.
  • To showcase the integration of qAF with multi-modal imaging for disease elucidation.

Main Methods:

  • Employing a confocal scanning laser platform for autofluorescence measurement.
  • Utilizing short-wavelength (488 nm) excitation.
  • Standardized qAF protocol involves normalization of grey levels, magnification, and anterior media absorption corrections.

Main Results:

  • qAF allows for structural correlations due to its non-invasive nature.
  • Deviations in autofluorescence patterns indicate various retinal disorders.
  • Standardized protocols enable serial and group comparisons of qAF images.

Conclusions:

  • qAF is a valuable tool for diagnosing and monitoring retinal diseases.
  • The technique's ability to correlate structure and function is crucial.
  • Combining qAF with multi-modal imaging offers advanced insights into retinal disease processes.