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Related Experiment Video

Updated: Jun 1, 2026

Quantitative Fundus Autofluorescence for the Evaluation of Retinal Diseases
07:22

Quantitative Fundus Autofluorescence for the Evaluation of Retinal Diseases

Published on: March 11, 2016

Low-cost portable fluorescein angiography.

Richard J Maude1, Katherine Plewes, Joss Dimock

  • 1Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, 420/6 Rajvithi Road, Rajthevee, Bangkok 10400, Thailand. richardmaude@gmail.com

The British Journal of Ophthalmology
|May 19, 2011
PubMed
Summary

Fundus fluorescein angiography, a tool for studying brain diseases, can now be used at the bedside. A novel portable method makes this advanced imaging accessible for non-ambulatory patients, expanding research possibilities.

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Area of Science:

  • Ophthalmology
  • Neurology
  • Vascular Biology

Background:

  • Fundus fluorescein angiography (FA) is a valuable non-invasive tool for in vivo investigation of central nervous system (CNS) microvascular diseases.
  • Current limitations include the need for bulky, expensive equipment and cooperative, seated patients, restricting its use to well-resourced settings.
  • Studies on severe malaria pathogenesis are exploring FA to understand microvascular obstruction's role.

Purpose of the Study:

  • To describe a novel, low-cost method for performing fundus fluorescein angiography (FA) using a portable retinal camera.
  • To adapt FA for use in sick, non-ambulatory patients at the bedside.
  • To expand the scope of potential studies utilizing FA in diverse clinical settings.

Main Methods:

  • Development and adaptation of a portable retinal camera for fundus fluorescein angiography (FA).
  • Implementation of FA at the patient's bedside for non-ambulatory individuals.
  • Cost-effective modification of existing technology for broader accessibility.

Main Results:

  • A novel method for bedside fundus fluorescein angiography (FA) was successfully developed and demonstrated.
  • The portable system is adaptable at a very low cost, overcoming previous accessibility barriers.
  • This technique significantly expands the potential applications of FA in investigating diseases affecting the central nervous system.

Conclusions:

  • Bedside fundus fluorescein angiography (FA) offers a unique, non-invasive approach to study microvascular pathogenesis in CNS diseases.
  • The developed portable method democratizes access to FA, enabling studies in previously inaccessible patient populations.
  • This innovation holds significant promise for advancing research in neurology and infectious diseases like malaria.