Work

Wide-field retinal hemodynamic imaging with the tracking scanning laser ophthalmoscope

Year: 2004

Type: article

Abstract: Real time, high-speed image stabilization with a retinal tracking scanning laser ophthalmoscope (TSLO) enables new approaches to established diagnostics. Large frequency range (DC to 19 kHz), wide-field (40-deg) stabilized Doppler flowmetry imaging was demonstrated in initial human subject tests. The fundus imaging method is a quasi-confocal line-scanning laser ophthalmoscope (LSLO). The retinal tracking system uses a confocal reflectometer with a closed loop optical servo system to lock onto features in the ocular fundus and automatically re-lock after blinks. By performing a slow scan with the laser line imager, frequency-resolved retinal perfusion and vascular flow images were obtained free of eye motion artifacts. Normal adult subjects and patients were tested with and without mydriasis to characterize flow imaging performance.

Source: Optics Express

DOI: 10.1364/opex.12.005198

Authors: R. Daniel Ferguson, Daniel X. Hammer, Ann E. Elsner, Robert H. Webb, Stephen A. Burns, John J. Weiter

Institutions: Physical Sciences (United States), Harvard University

Language: English

Topic: Retinal Imaging and Analysis

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $2,270