Spectralis Anterior Segment Advice https://www.opsweb.org/forums/posts.aspx?topic=428766 Thu, 4 Jun 2026 06:42:42 GMT Tue, 11 Feb 2014 19:09:18 GMT Copyright © 2014 Ophthalmic Photographers' Society Spectralis Anterior Segment Advice https://www.opsweb.org/forums/posts.aspx?topic=428766 https://www.opsweb.org/forums/posts.aspx?topic=428766 We are trying to get a handle on using the anterior segment lens on the Spectralis. Have not done much imaging yet, but our DSEK docs are very interesting in documenting when the flaps are off. When we attempt to capture that outer corneal area,  the reflected image of the central cornea gets in the way. We have tried capturing in both the cornea mode and the angle mode in hopes of avoiding the reflection. But neither gives us the results we wish to get.

I've been told the OCT scan has a depth limit of a couple millimeters, so I get the feeling there is not much I can do to keep that refected image out of my scans. Does anyone have any suggestions or comments??

Appreciated!

Gary

]]> Fri, 1 Jun 2012 14:45:08 GMT https://www.opsweb.org/forums/posts.aspx?topic=430946 https://www.opsweb.org/forums/posts.aspx?topic=430946 Gary,

 

I've only played with it on one or two patients so far. I'm interested in seeing what it can and can't do as well. We should compare notes.

 

tim

]]> Wed, 6 Jun 2012 13:35:28 GMT https://www.opsweb.org/forums/posts.aspx?topic=431114 https://www.opsweb.org/forums/posts.aspx?topic=431114 The reflex appears at the apex of the cornea, and as far as I know you cannot eliminate it.   If you move the joystick (OCT position) slightly  you can 'displace' it however, which might give you a better view of that central area, though it will not be centered in the OCT image.

Also, we have found image quality is better with less sampling  (less than 60 ART).  

]]> Wed, 6 Jun 2012 18:24:30 GMT https://www.opsweb.org/forums/posts.aspx?topic=434072 https://www.opsweb.org/forums/posts.aspx?topic=434072 Gary-  

 Can you send us an image to show us what you are seeing?  If it is a beam that is perpendicular to the cornea, that is a good artifact. It means you have found the vertex.  See my post on the website about this:  

http://www.opsweb.org/?page=ASOCT

 

I have a feeling you have found something else though so send on the picture!

 Sarah

]]> Wed, 13 Jun 2012 16:09:58 GMT Measurement tools https://www.opsweb.org/forums/posts.aspx?topic=708688 https://www.opsweb.org/forums/posts.aspx?topic=708688 Hello All,

Can anyone tell me how to activate calipers or take measurements using the anterior segment attachment for the Spectralis?  I did some scans on a co-worker with and without refraction data entered.  When not entered I get a message: "Refraction failed.  No measurements, etc.

When entering refraction data we do not get that message but I do not see how one might access the tools to perform measurements.  Please enlighten me!

Michael Bono

Imaging Services Section

NEI

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