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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 4, Iss. 8 — Aug. 1, 2013
  • pp: 1305–1317

In vivo imaging of human retinal microvasculature using adaptive optics scanning light ophthalmoscope fluorescein angiography

Alexander Pinhas, Michael Dubow, Nishit Shah, Toco Y. Chui, Drew Scoles, Yusufu N. Sulai, Rishard Weitz, Joseph B. Walsh, Joseph Carroll, Alfredo Dubra, and Richard B. Rosen  »View Author Affiliations

Biomedical Optics Express, Vol. 4, Issue 8, pp. 1305-1317 (2013)

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The adaptive optics scanning light ophthalmoscope (AOSLO) allows visualization of microscopic structures of the human retina in vivo. In this work, we demonstrate its application in combination with oral and intravenous (IV) fluorescein angiography (FA) to the in vivo visualization of the human retinal microvasculature. Ten healthy subjects ages 20 to 38 years were imaged using oral (7 and/or 20 mg/kg) and/or IV (500 mg) fluorescein. In agreement with current literature, there were no adverse effects among the patients receiving oral fluorescein while one patient receiving IV fluorescein experienced some nausea and heaving. We determined that all retinal capillary beds can be imaged using clinically accepted fluorescein dosages and safe light levels according to the ANSI Z136.1-2000 maximum permissible exposure. As expected, the 20 mg/kg oral dose showed higher image intensity for a longer period of time than did the 7 mg/kg oral and the 500 mg IV doses. The increased resolution of AOSLO FA, compared to conventional FA, offers great opportunity for studying physiological and pathological vascular processes.

© 2013 OSA

OCIS Codes
(170.1610) Medical optics and biotechnology : Clinical applications
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.4470) Medical optics and biotechnology : Ophthalmology
(330.5380) Vision, color, and visual optics : Physiology
(110.1080) Imaging systems : Active or adaptive optics

ToC Category:
Ophthalmology Applications

Original Manuscript: May 21, 2013
Revised Manuscript: June 22, 2013
Manuscript Accepted: July 5, 2013
Published: July 12, 2013

Virtual Issues
Novel Techniques in Microscopy (2013) Biomedical Optics Express

Alexander Pinhas, Michael Dubow, Nishit Shah, Toco Y. Chui, Drew Scoles, Yusufu N. Sulai, Rishard Weitz, Joseph B. Walsh, Joseph Carroll, Alfredo Dubra, and Richard B. Rosen, "In vivo imaging of human retinal microvasculature using adaptive optics scanning light ophthalmoscope fluorescein angiography," Biomed. Opt. Express 4, 1305-1317 (2013)

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