Posterior capsular opacification and YAG capsulotomy rates: hydrophobic and hydrophilic lens compared

Poster Details

First Author: S.Maqsood UK

Co Author(s):    G. Smith              

Abstract Details

Purpose:

Posterior capsular opacification (PCO) is one of the frequent long -term complications following cataract surgery. There are multiple factors thought to be involved in development of PCO including intra-ocular lens (IOL) material, IOL design, and surgical technique. We present a comparison of PCO progression and Yttrium Aluminium Garnet (YAG) capsulotomy rates between a hydrophobic and hydrophilic lens material with a common edge design and surgical technique.

Setting:

Great Western Hospital, a District General Hospital of south –west of England.

Methods:

A total of 200 uncomplicated consecutive cataracts operated by one surgeon and transplanted with the MI60 and the SA60 lens (100 each) were retrospectively assessed for degree of PCO with a follow up period of 24 months. Furthermore, YAG capsulotomy rates are calculated and compared.

Results:

At one year, 12 of the patients with MI60 lens had developed mild PCO (compared to 8 patients with SA60 lens, Fisher exact test p value: 0.26). Three patients with MI60 lens were assessed to have moderate PCO (compared to 1 patient with SA60, p value: 0.31), No MI60 patients had developed severe PCO (compared to 2 patients with SA60). Three percent of patients with MI60 lens had undergone YAG capsulotomy at 1 year, as opposed to two percent capsulotomy rate with SA60 lens (p value: 0.50). At two years, patients with the MI60 lens developing mild and moderate PCO were 14 and 3, compared to 14 and 5 with the SA60 respectively (p value: 0.26, 0.50). YAG capsultomies were performed for six patients with MI60 compared to four patients with SA60 lens (p value: 0.34) at the end of 24 month follow up

Conclusions:

When compared with SA60 lens, MI60 lens has shown increased progression of PCO and YAG Capsulotomy rates but the difference is not significantly different at 2 years. Despite these findings, the MI60 lens offers the advantages of smaller incision size, low aspheric aberrations and glistening. FINANCIAL DISCLOSURE?: No