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Post Info TOPIC: My crosslinking experience so far


Executive

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Date: Wed Oct 24 8:50 PM, 2007
RE: My crosslinking experience so far
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Hi Julia,
as far as i know, he has a good rerason to say "wait and be patient". The reason being that in cornea there is no blood vesseles and the dynamics of all processes there, and of corneal wound healing in particular, is very slow.
Best,
Y.

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yarsky


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Date: Sun Oct 28 7:54 PM, 2007
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Hi Julia,
take a look at this page

http://www.refractiveonline.it/eng/pages/edition.aspx?anno=2006

Listen to all of them, this is very useful information. Pay attention to this one "What is new in corneal topographie for Cross-linking" The madame will say, that time is realy important postop because of the epithelium recovery. It turns out that epithelium ajusts for corneal irregularities for up to 6 months, and that it is natural that first 1-2 months one hase more abberations. Pay also attention to "Confocal microscopy after cross-linking".
In a month , 30 November, in Toulouse there will be another european congress on KC, x_linking included. I'll keep you informed!
Best regards,
Y.

-- Edited by Yarsky at 20:56, 2007-10-28

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yarsky
jr


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Date: Wed Oct 31 8:13 AM, 2007
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Thanks, Yarsky!

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jr


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Date: Fri Nov 2 9:52 PM, 2007
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Update. 2 months 10 days now after x-linking.

I have had a significant worsening during the last month. At least my topography done today says so.

Here are 2 topos. The first one is done on the same machine before x-linking. It was done more than 2 months before x-linking but no big change happened during these months.



-- Edited by jr at 22:53, 2007-11-02

-- Edited by jr at 22:55, 2007-11-02

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Executive

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Date: Sat Nov 3 12:40 AM, 2007
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Dear Julia!
Thank you very much for these images. Let me analyse them as I can.

The pre op is dated June 1 2007.

A lot of red colour, the more red the more big is the curvature, the steepper the conus and deformations..
The elevation of the OD Is more concentrated and numbers tell 44 Diopters max curvature, 41 min curvature. The morphology resembles the one we used to have with a regular keratoconus.
Astigmatic power 43D.
The motphology of the OS is not like the keratoconus pattern, it is much more diperesed and peripheric, having 41 D max and 40 D min.
Astigmatic power 40 D.

The post op is dated November 2 2007.

Much less red colour, almost nowhere red,.
OD max 51, min 45. The geometry of the deformation is different from the pre op one. The green zone is much vaster. The elevated and deformed zone (yellow and orange) is much more narrow and oncentrated than on the pre op image. Normally the numbers should be less than before but they are higher...A triky and mindboggling stuff, for the deformation has narrowed! Astigmatic power however is 50D....

OS. No red colours. The deformation has changed its position and narrowed a bit. Normally numbers has to be different and less. Again a triky stuff.
Astigmatic power 40D.

If numbers where not there I'd say that your corneas have flattened!

Have you sent these images to doctor Kohlhaas?

Lets see what the months to come have in stock. I think the post Lasik corneas react much more on cross-linking than usual KC corneas. I believe we will see more flattennig, and numbers will change....
All the best
Y.


-- Edited by Yarsky at 01:41, 2007-11-03

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yarsky
jr


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Date: Sat Nov 3 8:49 PM, 2007
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Hello Yarsky and thanks for your analysis and opinion!
First, I had only the right eye crosslinked. It frightens me to think about what would happen if I had both done. I think I wouldn't be able to do most of the things I do, even going out would be a difficulty.

Second, I'd like to point that the deformation most likely hasn't narrowed. It's important that on the pre-op topography, there is a difference of 1D between colours. On the post-op one, the difference is 2.5D. That's why the overall picture might look like a flattening.

In whole, I'm also hoping for a change... still.



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Executive

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Date: Sat Nov 3 10:20 PM, 2007
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Hi Julia!
I have never seen that! All my orbscans seem to have the same scale and the same one to one map between the curvature and the colour. How do you explain that the scale on your scans is different? Besides, do you have the orbscan done on the op day?

-- Edited by Yarsky at 23:25, 2007-11-03

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yarsky
jr


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Date: Sun Nov 4 12:50 AM, 2007
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Hi Yarsky,

the scale is different because there's a much bigger gap between min and max K on the post op topography. To put all these K's in a scale in the most informative way, the topograph chose a bigger interval of dioptric power to present as one colour. Btw, why do you think that there's max 51 D on the right eye? To me it looks like 62.5 D max as this is what the scale ends with.

On the orbscans, as far as I understand, the scale is always fixed. This approach makes it easier to compare different topos but one can miss the detail if it's needed.

Nope, I do not have the orbscan made on the op day.. It's left somewhere in Dortmund smile Prof. Kohlhaas said that it doesn't differ much from the one I've posted earlier in this thread.



-- Edited by jr at 01:53, 2007-11-04

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