Posters

Comparison of visual quality for 1.8 mm system and 3.0 mm system in phacoemulsification

Poster Details

First Author: F.YUan CHINA

Co Author(s):    A. Zhang              

Abstract Details

Purpose:

To prospectively assess the efficacy of microincision cataract surgery and implantation of Akreos M160 IOL, inserted through 1.8-mm clear corneal incision.

Setting:

Zhongshan Hospital of Fudan University

Methods:

A nonrandomized prospective study, MICS group (group 1) included 24 eyes of 20 patients who had uneventful coaxial MICS with implantation of an Akreos MI60 IOL using a 1.8 mm temporal clear corneal incision. 30 eyes of 28 patients who had coaxial small-incision (3.0-mm) phacoemulsification using pulsed ultrasound energy (AMO：SOVEREIGN System) with implantation of an AcrySof IOL as a comparison group (group 2). Study parameters included effective phaco time and average ultrasound power intraoperatively，central and incision corneal thickness and uncorrected distance visual acuity on 1st day and at 1 and 6 weeks postoperatively, corneal endothelium loss rate at 6 weeks postoperatively.

Results:

In this study, there were both centre corneal edema on 1st day postoperatively. But there was less in group 1(653.19±37.45) than in group 2(691.56±57.64), and the difference was significantly. And local edema around clear corneal incision on 1st day postoperatively was less in group 1(924.81±30.34) than in group 2(964.20±42.98). and the difference was significantly. But both central corneal thickness and incision corneal thickness were similar in the 6 weeks follow-up.The UCVA was similar between the groups from 24 hours to 6 weeks postoperatively. The effective ultrasound time was shorter and average ultrasound power was lower in group 1 than in group 2.But there was no statistically significant differences .There was no difference in corneal endothelium loss rate at 6 weeks postoperatively.There were no conspicuous complication in MICS.

Conclusions:

1.8-mm MICS was proved stable, safe and efficient, which made less trauma related to the incision and faser rehabilitation compared with conventional 3.0-mm coaxial surgery. In all 24 cases the Akreos MI60 IOLwas inserted through 1.80mm clear corneal incision. FINANCIAL INTEREST: NONE