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March 1994

New Stroboscopic Light Source for Intraoperative Retinal Fluorescein Angiography

Author Affiliations

From the Doheny Eye Institute and the Department of Ophthalmology, University of Southern California School of Medicine, Los Angeles (Drs Krueger, Smith, and Chong and Mr Morales), and the Laser Microwave Division, US Army Environmental Hygiene Agency, Aberdeen Proving Grounds, Md (Dr Sliney). The authors have no commercial or proprietary interest in any of the products or manufacturing companies mentioned in this article.

Arch Ophthalmol. 1994;112(3):420-422. doi:10.1001/archopht.1994.01090150152038

We tested a new stroboscopic light source for intraoperative fluorescein angiography. A pulsed xenon light source and narrow-band interference filters are coupled to a 20-gauge endoilluminator and a 35-mm camera mounted on a surgical microscope. The system was tested with good success in a patient undergoing penetrating keratoplasty. An 18- to 22-μJ flash of 2 milliseconds' duration is achieved, which is well below the safety threshold level. This new stroboscopic light source provides a flash of sufficient light intensity to perform high-resolution, high-contrast fluorescein angiography during operations for the removal of opacified media.

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