Prior to cataract surgery my ophthalmologist and I discussed IOL choices and she discussed how much I would like the premium multifocal IOLs compared to a standard IOL implants. I had a Technis IOL implanted however it was not centered. It was suggested I give it time to possibly correct but after a year I had the Technis MFL removed due to blurriness and severe ghosting.
During the course of the year I was given a sc
2014-12-26 04:48:24
The Tecnis platform (whether monofocal or multifocal) includes -0.27 microns of spherical aberration. If this kind of lens is decentered the negative SA in the lens causes other aberrations such as coma which is the reason for the ghosting. Since the ghosting is caused by aberrations like coma in the eye and there are no spectacle or contact lenses on the outside of the eye that can correct these aberrations the answer is no corrective lenses or standard contact lenses would have been able to solve your problem. So you were right in having the lens removed. A multifocal lens actually magnifies the effect of these aberrations from decentration even if you would have seen ghosting with a decentered monofocal Tecnis as well. Implanting Tecnis lenses in general requires meticulous surgery so that the rhexis is round and centered and the zonules are not damaged. Care is also taken not to damage the lens haptics during their implantation. If at the end of surgery the lens is decentered the surgeon should look for a cause and if the lens cannot be recentered consideration should be given to exchange the lens there and then especially for a Tecnis multifocal lens. The Tecnis lens is not a bad lens but the surgeon must be cognizant of its peculiarities and the importance of centration with this lens in particular. If I felt that my patient's lens might be decentered after surgery for whatever reason (eg loose zonules pseudoexfoliation) then I would use a zero spherical aberration lens like the Envista. The question in your case really is: why was the lens decentered? Usually decentered lenses do not correct themselves.
2014-12-26 04:48:56
