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Dice vs mixed (chops and cylinders) lens fragmentation patterns in femtosecond laser-assisted cataract surgery

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Session Details

Session Title: Presented Poster Session 06: Femto Lasers 2

Session Date/Time: Saturday 13/09/2014 | 15:00-17:00

Paper Time: 16:15

Venue: Pod 3 (Poster Village)

First Author: : L.Toto ITALY

Co Author(s): :    P. Mattei   L. Vecchiarino   A. Mastropasqua   C. De Nicola   G. Falconio   L. Mastropasqua

Abstract Details


To evaluate visual outcome, central corneal thickness and cumulative dissipated energy (CDE) after two different fragmentation patterns by means of femtosecond laser-assisted cataract surgery (FLACS).


Eye Clinic, Department of Medicine and Science of Ageing, University 'G. d'Annunzio' of Chieti-Pescara, Italy


Sixty eyes of 60 patients that underwent FLACS were randomized in two groups: dice lens fragmentation pattern (group 1; 30 eyes) and mixed (chop and cylinders) lens fragmentation pattern (group 2; 30 eyes).


There were no significant between-group differences in uncorrected and corrected distance visual acuity during the3-month follow up. At 7 and 30 days after surgery a lower increase of central corneal thickness was observed in group 1 compared to group 2 (p<0.05) with no significant differences at 90 days after surgery. Central endothelial cell loss was lower in group 1 compared to group 2 at 90 days. Cumulative dissipated energy was significantly lower in group 1 compared to group 2 (p<0.05; 4.01 ±0.77 and 12.57±2.24, respectively).


Both lens fragmentation patterns were effective in nucleus disassembly. Nevertheless, dice pattern required a lower amount of CDE, thus inducing lower central endothelial cell loss and lower increase of central corneal thickness.

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