The gas bubble has a higher refractive index, so you need to focus with a
higher diopter setting. Rotate the focus knob on the Spectralis all the way
to -20 and that often gets you closer to the correct focus. The same goes
for the Zeiss Cirrus. You may still experience blocked signal from the
interface of the gas bubble on the retina.
Best of luck!
*Amy Désirée Goldstein, CRA, OCT-C*
Ophthalmic Photographer
Byers Eye Institute
Stanford Health Care
2452 Watson Court
Palo Alto, CA 94303
(650)723-6995
agoldstein@xxxxxxxxxxxxxxxxxxxxxx
On Fri, Mar 17, 2017 at 8:36 AM, Darrin Landry <darrin@xxxxxxxxxxxxxxxx>
wrote:
If it's not 100% full, start where you can see retina, (using a single
horizontal line scan) press the ART button on your touchpad, and move the
scan up, through the gas bubble. usually I can get a vague image of the
fovea with that technique.
I do find that the Zeiss cirrus works better at getting images through gas.
*Darrin A Landry, CRA, OCT-C*
Ophthalmic Consultant
Bryson Taylor, Inc.
207-838-0961 <(207)%20838-0961>
www.brysontaylor.com <Darrin@xxxxxxxxxxxxxxxx>
------------------------------
*From*: "Zach.Dupureur" <Zach.Dupureur@xxxxxxxxx>
*Sent*: Friday, March 17, 2017 11:31 AM
*To*: "optimal@xxxxxxxxxxxxx" <optimal@xxxxxxxxxxxxx>
*Subject*: [optimal] Any tips on OCT through gas?
This message was sent securely using ZixCorp.
<http://www.zixcorp.com/get-started/>
Hi all,
I was wondering if anyone had some tips on getting an OCT through a gas
bubble after surgery. Sometimes I can get a decent image, but a majority of
the time the gas distorts the signal from the Spectralis. Any techniques to
get around this?
Thanks!
Zach Dupureur, OCT-C
Ophthalmic Photographer
Carle Foundation Hospital
E: Zach.Dupureur@xxxxxxxxx
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