Is your KC mild, moderate advanced or severe?

General forum for the UK Keratoconus and self-help group members.

Click on the forum name, General Discussion Forum, above.

Moderators: Anne Klepacz, John Smith, Sweet

User avatar
Steven Williams
Forum Stalwart
Forum Stalwart
Posts: 316
Joined: Tue 18 May 2004 10:48 pm
Keratoconus: Yes, I have KC
Vision: Other
Location: North Lancashire

Is your KC mild, moderate advanced or severe?

Postby Steven Williams » Thu 10 Apr 2014 5:07 pm

Discovered this gem of information which clearly defines the parameters

http://kcglobal.org/content/view/14/26/

Corneal curvature
Mild keratoconus < 45D
Moderate keratoconus 45 - 52D
Advanced keratoconus 52 - 65D
Severe keratoconus > 62D


Corneal thickness in microns
Normal cornea 543 Microns
Early keratoconus 506 Microns
Moderate keratoconus 473 Microns
Advanced keratoconus 446 Microns
"The mind is like a parachute it only operates when open"

User avatar
space_cadet
Champion
Champion
Posts: 881
Joined: Tue 12 May 2009 11:46 pm
Keratoconus: Yes, I have KC
Vision: Other
Location: Leeds
Contact:

Re: Is your KC mild, moderate advanced or severe?

Postby space_cadet » Sun 13 Apr 2014 4:28 pm

ungrafted legally blind eye going on these definitions is both severe and advanced but I suspect that is no shock to anyone, including myself
May09 Diagnosed with KC, March 2010 after a failed transplant it has left me legally blind a long cane user (since 2010) who is blind in a once sighted world

User avatar
CrippsCorner
Forum Stalwart
Forum Stalwart
Posts: 375
Joined: Wed 02 Oct 2013 3:40 pm
Keratoconus: Yes, I have KC
Vision: Contact lenses
Location: Essex
Contact:

Re: Is your KC mild, moderate advanced or severe?

Postby CrippsCorner » Mon 14 Apr 2014 2:34 pm

I've got my second CT scan next month so it'll be interesting to see how far my eyes have deteriorated... I feel the left one hasn't changed much, but the right one has got worse. Taken from my CT scan in November it would seem I am officially moderate in both eyes; 46.6 in my left eye, and 47.5 in my right eye.

I don't know what my micron count is, I must remember to ask in May.

Grant
Regular contributor
Regular contributor
Posts: 127
Joined: Tue 04 Oct 2005 4:05 pm
Keratoconus: Yes, I have KC
Vision: Contact lenses
Location: Leicestershire

Re: Is your KC mild, moderate advanced or severe?

Postby Grant » Mon 14 Apr 2014 2:58 pm

Interesting Steven, thanks for sharing. I wonder if this is a generally accepted scale or one person's assessment? I don't know either of my measurements, will ask next time I'm seen.

User avatar
Steven Williams
Forum Stalwart
Forum Stalwart
Posts: 316
Joined: Tue 18 May 2004 10:48 pm
Keratoconus: Yes, I have KC
Vision: Other
Location: North Lancashire

Re: Is your KC mild, moderate advanced or severe?

Postby Steven Williams » Tue 15 Apr 2014 12:31 pm

From my own personal research I have discovered the curvature of a normal cornea is 44 diopters so not alot of difference between that and mild KC which probably accounts for why people who do have KC will never be/are yet to be diagnosed.

I suspect the majority of diagnosed KCers, like myself, have never been provided with the objective measures - curvature and thickness and not had regular annual topography scans and cornea thickness measurements taken. Your experience Grant appears to confirm that.
"The mind is like a parachute it only operates when open"

James_Ldn
Regular contributor
Regular contributor
Posts: 67
Joined: Sat 29 Sep 2012 11:20 pm
Keratoconus: Yes, I have KC
Vision: Contact lenses

Re: Is your KC mild, moderate advanced or severe?

Postby James_Ldn » Tue 15 Apr 2014 5:14 pm

I wonder if the 'corneal curvature' refers to the Kmax or the K average?

Either way, for me I would have 'moderate KC' for corneal curvature and 'early KC' for corneal thickness.

munster
Regular contributor
Regular contributor
Posts: 117
Joined: Sat 29 Oct 2011 7:23 pm
Keratoconus: Yes, I have KC
Vision: Contact lenses

Re: Is your KC mild, moderate advanced or severe?

Postby munster » Tue 15 Apr 2014 8:08 pm

Here is a link to my previous post which I posted my pentacam scans, taken about 1 year ago.

Pentacam Scans

Mousework
Regular contributor
Regular contributor
Posts: 65
Joined: Mon 23 Jul 2012 2:43 pm
Keratoconus: Yes, I have KC
Vision: Other

Re: Is your KC mild, moderate advanced or severe?

Postby Mousework » Tue 22 Apr 2014 1:02 am

space_cadet wrote:ungrafted legally blind eye going on these definitions is both severe and advanced but I suspect that is no shock to anyone, including myself

According to who international standards you are not legally blind in just one eye, In order to be considered legally blind, someone must have vision of 20/200 (6/60) in his or her best eye with correction, and/or have a visual field that is limited to 20 degrees or less, in contrast with the 180 degree visual field enjoyed by people with healthy eyes. This definition means that it is possible for someone to be able to see and to still be considered blind in the eyes of the law.

User avatar
andytraill
Regular contributor
Regular contributor
Posts: 67
Joined: Mon 13 Feb 2012 9:03 pm
Keratoconus: Yes, I have KC
Vision: Contact lenses

Re: Is your KC mild, moderate advanced or severe?

Postby andytraill » Wed 23 Apr 2014 11:41 am

Here are a few of my scans from a year or maybe two ago. The right looks fairly dramatic but I get around with my left pretty well (corrected it's near 20/20).

Right: K-max 84.3D ( :lol: ), Thinnest Local 362um.

Left: K-max 47.3D, Thinnest Local 451um.

Image

Image

User avatar
CrippsCorner
Forum Stalwart
Forum Stalwart
Posts: 375
Joined: Wed 02 Oct 2013 3:40 pm
Keratoconus: Yes, I have KC
Vision: Contact lenses
Location: Essex
Contact:

Re: Is your KC mild, moderate advanced or severe?

Postby CrippsCorner » Thu 24 Apr 2014 8:14 am

Blimey! That's some pretty extreme results, at least all the colours look pretty...


Return to “General Discussion Forum”

Who is online

Users browsing this forum: Edwardpievy and 28 guests