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Related Experiment Videos

Wide-angle indocyanine green angiography

R F Spaide1, D A Orlock, B Herrmann-Delemazure

  • 1Retina Research Laboratory, Manhattan Eye, Ear, and Throat Hospital, New York, New York 10021, USA.

Retina (Philadelphia, Pa.)
|March 21, 1998
PubMed
Summary
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This study introduces an easy and inexpensive wide-angle fundus lens angiography technique. It significantly enhances visualization of the retina and choroid, improving diagnosis of fundus pathologies.

Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Retinal Imaging

Background:

  • Conventional fundus cameras have limited fields of view, restricting evaluation of fundus vasculature and blood flow.
  • There is a need for improved methods to image larger areas of the fundus.

Purpose of the Study:

  • To develop an easy and effective method for imaging wide areas of the fundus.

Main Methods:

  • Utilized wide-angle contact fundus lenses with antireflective coatings in the infrared range.
  • Performed indocyanine green angiography through these lenses on over 50 patients with diverse fundus pathologies.

Main Results:

  • Achieved an angular field of view up to 160 degrees, simplifying imaging anterior to the ora serrata.

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  • Enabled detailed study of choroidal vasculature and enhanced imaging of peripheral choroidal neovascularization and tumors.
  • Demonstrated superior imaging compared to conventional techniques.

    • Conclusions:

    • Wide-angle fundus lens angiography is a simple, cost-effective method for visualizing extensive fundus areas.
    • This technique improves the ability to image retinal and choroidal angioarchitecture, hemodynamics, and pathological changes.