Informative multifocal Intraocular lens article

I know there wasn't much information on the new FDA approved Tecnis multifocal.  Someone told me to check out this website (link below...), and I thought it may be of use for someone who is considering a multifocal.  It's pretty cool... it looks at light in a night situation through the actual lenses.  Not sure how accurate it really is.  My vision is way better with the restor than they show in the second set of pictures......  

It is interesting to note that the Tecnis is supposed to be better reading in dim light than restor because of it's more equal light distribution, but because of that light distribution, chances of glare and halos at night may be higher.  And its also why the ReZoom is THAT bad.

Just another tool for someone to use when weighing pros and cons of any replacement lens.

Hope it helps someone....

http://www.eyeworld.org/article.php?sid=4036&strict=0&morphologic=0&query=

[Ray T Oyakawa, MD]

The optics of ReStor and Tecnis is a diffractive technology and the ReZoom has refractive technology.

Dr. O.

[eyecu]

One author has financial interest with Restor company. You need to compare published clinicals and package inserts. At 4-6 months Tecnis had 9% severe halo complaints versus 10.1 with Restor 3 and 13.7 with Restor 4 with data based on 3 month post implantation of the second eye. Severe glare was 3.6% with Tecnis and 8% with Restor 3 and 7.6% with Restor 4. Certain eye models can be made to try to show the weakness of one versus the other. There are a lot of other issues as well. Restor can cut down on blue light which is needed in nighttime vision for contrast and it does not correct for as much spherical aberation.

You also need to think about  that a lens in a model eye with shots taken through a camera. That camera does not have a brain and does not take in account neuroadaptation. Just like you say your image is better than the picture. Your brain is adapting to your new visual system.

[Restorsucess]

As with all study's, you need to take it all with a grain of salt.  I just thought it was interesting... something to consider when someone needs to decide on a lens.  It does make sense with the light distribution.  Not sure what you mean with the blue light thing...My night vision is excellent... crystal clear. Whether freeway, city, or remote back highways.  Daytime vision can only be described as spectacular.  This is not saying ReStor is the best out there, this is saying ReStor was the best choice for MY eyes.

I really didn't "decide" on what lens I wanted for my clear lens replacement; my surgeon took everything into consideration, including my lifestyle, and it worked out wonderfully.  Maybe surgeons give patients a choice in cataract surgery moreso than in clear lens replacement?

Besides the lens design, the physical aspects, as your mention, e.g., amount of pre-surgery aberration, pupil size, eye health, etc. needs to be considered also by the surgeon too.  In saying that, I would think a  surgeon that is well versed in all the lens choices (and doesn't use just one company for lenses....) could strongly recommend what's best for the patient.

Neuroadaptation IS a VERY big part of it also.  For me, not so much for halos or glare (as I never had them...), but just the vision improvement.  As many studies suggest, I had great improvement at 3 months and even more at 6 months.

I really wonder what magic my surgeon used when I look back at my Rx now.  Along with the myopia and presbyopia, I had -1.0 x 032 OS and -.75 x 120 OD astigmatism in my eyes, and ended up with 20/16 distance and J1.  He didn't do any astigmatism treatment during or after surgery.  He had mentioned prior I might need lasik tweaking, so I figured for sure I'd be less than perfect.  I wonder if the ReStor just had the right amount of spherical aberration correction to fix it?  It's a mystery...  Maybe he was doing the "under promise and over deliver" thing.....

Bottom line is the more information that is available for those that need to "decide" on their lens, the better.  I sure wouldn't want to say later "should've, would've, could've" after surgery.....