Format

Send to

Choose Destination
Biomed Opt Express. 2014 Mar 13;5(4):1173-89. doi: 10.1364/BOE.5.001173. eCollection 2014 Apr 1.

Comparison of adaptive optics scanning light ophthalmoscopic fluorescein angiography and offset pinhole imaging.

Author information

1
Department of Ophthalmology, New York Eye & Ear Infirmary, New York, NY 10003, USA.
2
Department of Ophthalmology, New York Eye & Ear Infirmary, New York, NY 10003, USA ; Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
3
The Institute of Optics, University of Rochester, Rochester, NY 14627, USA.
4
Department of Biomedical Engineering, Marquette University, Milwaukee, WI 53233, USA ; Department of Ophthalmology, Medical College of Wisconsin, Milwaukee, WI 53226, USA ; Department of Biophysics, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
5
Department of Ophthalmology, New York Eye & Ear Infirmary, New York, NY 10003, USA ; Department of Ophthalmology, New York Medical College, Valhalla, NY 10595, USA.

Abstract

Recent advances to the adaptive optics scanning light ophthalmoscope (AOSLO) have enabled finer in vivo assessment of the human retinal microvasculature. AOSLO confocal reflectance imaging has been coupled with oral fluorescein angiography (FA), enabling simultaneous acquisition of structural and perfusion images. AOSLO offset pinhole (OP) imaging combined with motion contrast post-processing techniques, are able to create a similar set of structural and perfusion images without the use of exogenous contrast agent. In this study, we evaluate the similarities and differences of the structural and perfusion images obtained by either method, in healthy control subjects and in patients with retinal vasculopathy including hypertensive retinopathy, diabetic retinopathy, and retinal vein occlusion. Our results show that AOSLO OP motion contrast provides perfusion maps comparable to those obtained with AOSLO FA, while AOSLO OP reflectance images provide additional information such as vessel wall fine structure not as readily visible in AOSLO confocal reflectance images. AOSLO OP offers a non-invasive alternative to AOSLO FA without the need for any exogenous contrast agent.

KEYWORDS:

(110.1080) Active or adaptive optics; (170.4460) Ophthalmic optics and devices; (170.4470) Ophthalmology; (290.4210) Multiple scattering

Supplemental Content

Full text links

Icon for PubMed Central
Loading ...
Support Center