Image Modalities; Slo Imaging Modalities; Oct Imaging Modalities - Nikon Optos Monaco P200TE Guia Del Usuario

Chapter 2 - Introduction
Note
The device also includes a user guide, power cable and Cat 6 cable not shown on this diagram.
A table may also be supplied.

2.6.2 Image modalities

Optos multi-modal ultra-widefield retinal imaging enables the capture of posterior images, with a field of view of
up to 200 degrees in a single capture, and in an imaging time of less than 0.4 seconds.
Depending on the configuration of your device the following image modalities may be available:

2.6.2.1 SLO imaging modalities

opto map
opto map is an ultra-widefield (
opto map combines neurosensory retinal and choroidal reflectance images and provides UWF image views from
a single capture action:
opto map color view – an UWF color fundus image combining red and green reflectance images.
l
opto map neurosensory retinal view – an UWF green laser reflectance image of the surface retina.
l
opto map choroidal view – an UWF red laser reflectance image of the deeper retina.
l
opto map af
opto map af
is an UWF green laser auto fluorescence image.
opto map plus
plus
opto map is a higher resolution option which is available for opto map color reflectance and
l
opto map af
modalities.
opto map plus is captured at resolution x1.5 that of the standard resolution opto map.
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2.6.2.2 OCT imaging modalities

OCT scans are described using nominal 'mm' dimensions. These dimensions are based
on an external angle scale factor of 3.47 as derived from the wide-angle schematic eye
CAUTION model published by Navarro et al
Optos OCT line scan
The scanner moves back and forth along the line of a selected location on the retina (fundus) and generates a
cross-sectional OCT image. The line scan is 12 mm in length.
line
The Optos OCT scan mode lets you capture cross sectional B-Scan OCT images of the vitreo-retina, retina
and choroid-retina structures.
This scan is also known as a B-scan OCT.
1. Ultra-widefield images provide a field of view of up to 200° in a single capture.
2. Isabel Escudero-Sanz and Rafael Navarro, "Off-axis aberrations of a wide-angle schematic eye model," J. Opt. Soc. Am. A 16, 1881-1891 (1999).
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English
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UWF
) color fundus image.
2.
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