Performance measurements of an infrared digital scanning laser ophthalmoscope.

Abstract:

:Direct digital acquisition of images using a scanning laser ophthalmoscope (SLO) offers several advantages over the conventional fundus camera; in particular, the ability to produce tomographic images using a confocal aperture. This note describes measurements of the performance of an SLO. Spatial resolution, measured by the modulation transfer function, MTF, was shown to be worse along the direction of scan. As expected, image uniformity was good, with a coefficient of variation of 1.9%. While the effect of using a 100 microns diameter confocal aperture instead of one with a 400 microns diameter was to reduce slice thickness from 2600 microns to 975 microns, image intensity was reduced by a factor of 30.

journal_name

Physiol Meas

authors

Manivannan A,Sharp PF,Forrester JV

doi

10.1088/0967-3334/15/3/010

subject

Has Abstract

pub_date

1994-08-01 00:00:00

pages

317-24

issue

3

eissn

0967-3334

issn

1361-6579

journal_volume

15

pub_type

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