On 11/28/08 11:42 AM, in article
63a31fce-7657-4aa6-aafd-57bb90b87a4c...oglegroups.com,
"(E-Mail Removed)" <(E-Mail Removed)> wrote:
> On Nov 19, 7:21 am, "Mike Tyner" <mty...@mindspring.com> wrote:
>> <roberu...@gmail.com> wrote
>>
>>> I would also advise anyone who has been told by an eye examiner
>>> (optometrist, etc.) that he/she requires cataract surgery to get a
>>> second opinion. Just because you have cataracts does not mean you
>>> require surgery.
>>
>> OTOH, people choose to have LASIK electively. Complication rates are pretty
>> similar between the two procedures and there are arguments for using
>> cataract surgery as a treatment for refractive error.
>>
>> On cataract surgery the best advice used to be "you need surgery when you
>> can no longer see to do the things you want to do."
>>
>> But it's appropriate to consider surgery at an earlier stage, if there is a
>> big refractive benefit.
>>
>> -MT
>
> Here's an update - two weeks after surgery.
>
> The shimmering/giggling problem is gone. What remains are glare
> problems at night and the negative dysphotopsia. On the glare
> problems -- which are manifesting themselves as rays coming out of
> bright lights -- my surgeon echoed what Dr. Robins said earlier in
> this thread -- that wrinkles in the lens capsule could be the culprit,
> and these should resolve as the capsule contracts around the iol.
>
> I talked to my surgeon about replacing the lens and he recommended
> strongly against it. The lens is a Clariflex, which has an edge
> design that is intended to provide the advantages of square-edged iols
> in minimizing post-cataract lens capsule clouding while also
> minimizing dysphotopsia. He said that round-edged iols, which I
> understand from the Medhelp forum and other places have the least
> chance of causing negative dysphotopisa, are never used anymore due to
> the lens envelope clouding issue. I am not sure that this is true.
> However, as the other symptoms are abating I am going to hope that the
> negative dysphotopsia will as well. Still going for a second opinion.
>
> I think part of my problem is that no one prepared me mentally for
> these after effects, and I did not do any research beforehand.
>
> So I'd like to offer thanks to all for your advice and info.
The silicone rubber Clariflex IOL also has less edge problems than the
higher index of refraction acrylic IOLs, such as the Alcon Acrysof. The IOL
exchange of preference when the Acrysof is a problem is to put in a
Clariflex, in an article I read by David Chang, one of the IOL experts. The
Clariflex is an update of the older SI-40, a rounder-edged IOL, but unlike
the Acrysof that has a 90 degree angle edge,t eh Clariflex is purposely a
slightly oblique angle to minimize internal reflections, but is is sharp at
its posterior point of contact with the lens capsule, so it purportedly
gives the advance of the square-edged IOLs regarding reduced opacification,
coupled with fewer dysphotopsias.