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Comparison of corneal endothelial changes following phacoemulsification with transversal and torsional phacoemulsification machines.

Abstract：

AIM:To compare and evaluate the phacoemulsification parameters and postoperative endothelial cell changes of two different phacoemulsification machines, each with different modes, but also to assess the relationship between postoperative endothelial cell loss and the phacoemulsification parameters, as well as the other factors in both groups. METHODS:This prospective observational study was comprised of consecutive eligible cataract patients operated with phacoemulsification technique performed by the same surgeon using either a WHITESTAR Signature Ellips FX (transversal, group 1) or Infiniti OZil IP (torsional, group 2) machine. RESULTS:The study included 86 patients. Baseline characteristics in the groups were similar. The median nuclear sclerosis grade was 3 (2-4) in the first group and 2 (2-4) in the second group (P=0.265). Both groups had similar phacoemulsification needle times (group 1: 60.63±36 s; group 2: 55.98±30 s; P=0.789). The percentage of endothelial cell loss 30d after surgery ranged from 3% to 15% with a median of 7% in group 1, and from 2% to 13% with a median of 6% in group 2; however, there was no statistically significant difference between the groups (P=0.407). Hexagonality (P=0.794) and the coefficient of variation (CV; P=0.142) did not differ significantly between the groups before and 30d after surgery. A significant positive correlation was found between the endothelial cell loss and nuclear sclerosis grade (group 1: P<0.001; group 2: P<0.001) and between the endothelial cell loss and average phacoemulsification power (group 1: P=0.007; group 2: P=0.008). CONCLUSION:Both of these machines were efficient, with similar endothelial cell loss. This endothelial cell loss was related to the increased nuclear sclerosis grade and increased phacoemulsification power.

journal_name

Int J Ophthalmol

journal_title

International journal of ophthalmology

authors

Ataş M,Demircan S,Karatepe Haşhaş AS,Gülhan A,Zararsız G

doi

10.3980/j.issn.2222-3959.2014.05.15

subject

Has Abstract

pub_date

2014-10-18 00:00:00

pages

822-7

issue

eissn

2222-3959

issn

2227-4898

pii

ijo-07-05-822

journal_volume

pub_type

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Comparison of corneal endothelial changes following phacoemulsification with transversal and torsional phacoemulsification machines.