ABSTRACT

Purpose:

To determine the effect of intraocular lens' (IOL) haptic number on posterior capsule opacification (PCO).

Methods:

In this retrospective study, between October 2001 and December 2002, in-the-bag implantations of IOL were performed after standard phacoemulsification surgery in 169 eyes of 127 senile cataract patients and they received standardized medication. 62 eyes re-ceived AcrySof MA60BM hydrophobic acrylic IOL with 2 haptics (group1), 70 eyes received DR.SCHMIDT MCTE hydrophilic acrylic IoL with 4 haptics (group2) and 37 eyes received OcuflexANU6 hydrophilic acrylic IOL with 2 haptics (group3). The patients were examined at 1 st, 3rd, 6th, 12th months after implantation and in their last visit. PCO is demonstrated on the basis of 2 line decrease in best corrected visual acuity (BCVA) in Snellens' chart, objective ap-pearance of PCO on ret.roilluminat.ion of posterior capsule under biomicroscopy, and the need of Nd: YAG laser capsulotomy.

Results:

4 eyes of 1st group, 13 eyes of 2nd group and 10 eyes of the 3rd group showed 2 line decrease in BCVA. In the biomicroscopic examination there were PCOs in 3 eyes of 1 st group, 11 eyes of 2nd and 17 eyes of the 3rd group. 2 eyes in 1st group, 7 eyes in 2nd group and 8 eyes in 3rd group required Nd: YAG laser capsulotomy in their follow-up visits.

Conclusions:

DR.SCHMIDT MCTE cause less PCO than OcuflexANU6 but more PCO than AcrySof MA60BM. DR.SCHMIDT MCTE shows similar results by means of Nd: YAG laser capsulotomy requirement with AcrySof MA60BM. So it's a good choice for phacoemulsi-fication surgery.