(E-Mail Removed) wrote:
> Does anyone have experience with the Macrolens from C & H. I recently
> switched from RGP toric lens to the Macrolens because I wanted that
> would be more stable in the eye and reduce the flaring I was getting
> from my RGP'S. While I like the comfort and the lene not moving
> in the eye, I lose about one line of acuity, from 20/30 to 20/40.
> C & H advertises that the Macrolens combines the best qualities
> of the RGP and soft lens as their selling point, but I am getting
> the acuity that I used to have with my soft lens. I have been back
> to my doctor a few times, but the acuity can not be corrected any
> better, and has told me that there is nothing more that can be done.
> My perscription is 5.25 - 3,25 X 013
> 6.00 - 4.00 x 165
> I also have mild congenital nystagmus
>
> thanks, Mike
I have had quite a bit of experience working with this lens. You have
very high astigmatism, and I would imagine that there is some flexure
of the lens with the result that not all of the astigmatism is being
neutralized. There are two possible solutions: (1)make the lens
thicker, or (2)add a front toric surface to eliminate the residual
astigmatism, in which case the lens will be have a prism ballast to
control rotational stability.
Another possible solution would be to use a bitoric RGP lens, which is
unavailable in the Macrolens design, but is common in smaller RGP
lenses.
DrG
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