UK Keratoconus Self-Help and Support Association

Kay well that was a relatively new one on me. I've been wearing and read around the subject of RGPs and sclera lens for a while but suddenly I learned about weighted lenses to correct a slight astigmatism in my right eye (non-grafted eye) there on Friday.
The KC hasn't progressed, nor has the prescription of the lens strength as I'm still getting a comfortable 6/6 with the RGP but the last 3 wks I've been getting slight ghosting and thought I'd have it checked out since I rely on that eye to drive. I'm still clear to drive but I'm having this new lens fitted next month.
I've never wore this kind of lens before and never needed correction for astigmatism this way either but I have been told because of the way it makes the correction to the sight it has to rest in only one plain and sometimes when I blink it can rotate, so it's weighted to right itself.
I tested a trial lens, which was super comfortable, very thin and with some refraction I got down to 6/5 without ghosting this time.
So, I'm curious, anyone else have any experience with this type of lens?

Hey there you!!

Glad to see that things are going well with you. No i haven't heard of this lens or tried it but it would make sense if it is weighted to keep it in one place!

Best of luck with it and let us know how things go!

Sweet X x X

Not heard of it being called "weighted" but there are similar things out there whereby they aim to reshape the cornea over nite and give you near perfect vision during the day....maybe the stuff you are asked to try works on a similar concept...or rather just alters the shape ever so slightly where the correction is required

J

I've heard Ken (I think) at MEH talking about them, but never tried one.
DO let us know how you get on, won't you?
Rosemary

New one on me, my friend. Let us know how you get on! It may be that you are blazing another trail that others can follow!

All the best

Andrew

Hi Knight
The term "weighted lens" is what is usually referred to as "toric lens". Your RGP lens corrects most of your astigmatism,but there's obviously some residual astigmatism causing the ghosting you're getting. This is ground on the front surface of the lens, but, as your optician says the lens needs to sit on the eye at a precise orientation, otherwise you wont get clear vision. In practice, the way this is done is by making the bottom part of the lens slightly thicker than the top like a very weak prism.They actually used to have gold inserts, hence the term "weighted".The lens may be slightly more uncomfortable at first but you should get used to it in a few days.

Does the weighted end naturally gravitate to the lower lid?

yes, that's the idea.So, even if the lens is inserted with the thicker end at the top it finds its orientation after a few blinks - hopefully!

that's interesting

Ali,

"gold inserts"???????

Where did you get that one from!!!

I'd be *really* interested in finding out for a forthcoming lecture!

David