V93

Decentration and Rotation of PC-IOLs

Biró Z, Kovacs K, Kovacs B
Medical University of Pécs

Purpose: To examine the amount and frequency of decentration
and rotation of different types of foldable posterior chamber in-
traocular lenses (PC-IOLs) (Medicontur-HM601HP, Storz-Hydro-
view, Alcon-AcrysofMA60, Pharmacia-CeeOn911). Methods: Fifty
eyes of 50 consecutive patients were examined at least 6 months
(6 – 44 months, average 13.7 months), after uneventful phacoe-
mulsification and PC-IOL implantation. All the PC-IOLs was im-
planted in-the-bag during surgery, with the long axis in the hori-
zontal level. Centrations of PC-IOLs were compared to the pupil
margin after dilation of the pupil. According to literature data,
more than 0.5 mm shift was considered as decentration. The
amount of rotation of PC-IOLs was compared to the horizontal
line. Results: Comparing the different types of PC-IOLs, there
was no significant difference in the amount of postoperative de-
centration, which was found in 12% of the cases. In 46% of the
cases there was a minimal rotation of less than 10°. However
rotation of more than 30° was observed as well (29%), mostly
with the Acrysof IOL. Conclusions: Postoperative rotation of in-
the-bag implanted PC-IOLs has less importance in spherical IOLs,
however, its importance may increase with the widespread use of
toric lenses for the intraoperative correction of astigmia.


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