Chapter 7 - Using the viewing options
4. Optional: Right click to change to an alternative view. If you select either Green Channel view or Red
Channel view you can then select one of the False Color Views to change the contrast of the magnified
area, see Using False Color views on page 48.
5. Move the Magnifier across the image. Change from Green Channel view to Red Channel view to review
different retinal layers. Use the mouse scroll button to zoom in further if necessary.
6. Select Image menu > Show Magnifier to close the Magnifier .
Note
Right click and select Local Optimize to switch off the False Color and revert back to the Green Channel
view or Red Channel view.
Using the 3D Wrap view
The 3D Wrap view displays the current image on a 3D model eye. It uses the current image view settings and
will display annotations.
You can export or email an individual 3D Wrap image or movie file,
Caution
Using the 3D Wrap view for diagnostic purposes is not recommended.
How to use the 3D Wrap View
1. Open the image you want to review.
2. Select Image menu > 3D Wrap to display the 3D Wrap view dialog box.
3. Fly Through starts automatically. You can modify the speed of the Fly Through animated sequence by
moving the Fly Through Speed slider. Drag the slider to the left to decrease the speed and to the right to
increase the speed.
4. You can choose which view to display; either Full Model, Transparent or Retina Only.
5. You can demonstrate myopia
1
and hypermetropia
2
by modifying the shape of the model eye. Drag the
Refractive Error slider to the left to simulate a myopic eye and to the right to simulate a hypermetropic
eye. The default image shape shows emmetropia
3
.
6. You can demonstrate the effect myopia, hypermetropia and astigmatism have on the patient's
vision by selecting the options in the Ray Types pane. Select Close Object, Distant Object and Astigmatic Ray
to display the rays. You can move the Refractive Error slider to demonstrate the differences. Ray types
are best displayed when the model eye is zoomed out and viewed from the side.
7. When demonstrating the effects of myopia, hypermetropia and astigmatism, you may want to show
the effect an IOL
4
, Contact Lens or Spectacles would have. When an Eye Lens is selected the Refractive Error
slider and Cataract options become unavailable.
8. You can demonstrate a cataract. Select the Cataract option to display a cataract on the 3D Wrap view.
9. You can display sample images in the 3D Wrap view by selecting the required image from the Sample
Images selection.
Notes
l
You can stop the Fly Through by clicking anywhere in the image.
l
You can stop the Fly Through running automatically by changing the 3D Wrap Options, see Setting
User Preferences on page 15.
1
(Also known as nearsightedness) a focusing defect where the patient can see close objects more
clearly than distant objects.
2
(Also known as hyperopia or farsightedness) a focusing defect where the patient can to see distant
objects more clearly than close objects.
3
Refractive state of having no refractive error when accommodation is at rest.
4
Intraocular lens
46 of 100
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