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Efficacy of transverse mode phacoemulsification under different energy oscillation

Poster Details

First Author: M.Ataş TURKEY

Co Author(s):    S. Yuvacı   S. Demirci   B. Başkan   G. Zararsız     

Abstract Details


The aim of this study was to asses transverse mode phacoemulsification under different energy oscillation (burst and continuous mode) and to compare the difference between phaco parameters as well as the effect of these modes on the corneal thickness and endothelial density.


Kayseri Resarch and Teaching Hospital, Turkey


This prospective observational study was comprised of consecutive eligible 70 eyes of 70 patients with senile cataract, who had phacoemulsification by the same surgeon (MA), using a WhiteStar Signature Elips-FX (Whitestar signature AMO, USA) machine under different energy oscillation. Baseline characteristics in the groups according to age, gender and nuclear density were similar. The patients were divided into two groups randomly. The patients in group 1 had cataract operation with burst mode of transverse phacoemulsification and the patients in group 2 had cataract operation with continuous mode of transverse phacoemulsification. Effective Phaco time, EFX time, corneal thickness and endothelial cells count in postoperative day 1, day 7 and day 30 were assessed.


Effective Phaco time was 80.00 seconds (ranged, 55.00-117.00) and 51.00 seconds (ranged, 34.00-68.00) in group 1 and in group 2 (p: < 0,001, 0,001 respectively). EFX time was 44.00 seconds (24.00-59.00) and 20.00 second (14.00-38.00) in group 1 and in group 2 (p: < 0,001, 0,001 respectively). The percentage of corneal thickness change was 7.78 (ranged 5.84-9.61) at day 1 in group 1 and 5.23 (ranged, 3.32-6.19) in group 2 (p:<0.001). The percentage of endothelial cell loss 30 days after surgery ranged from 7.67 % to 15.66 % with a median of 13.18 % in group-1; from 4.78% to 8.95% with a median of 6.07% in group-2 (p: <0.001).


Continuous mode of transverse phacoemulsification reveals less energy than burst mode and was found more protective for corneal endothelial cells. It seems likely to be more reliable and more effective method. FINANCIAL INTEREST: NONE

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