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yoshinao setoguchi, hatsuka ito, hideo nakanishi, keniti kuroda, kaori amemiya, misa taniguchi, yoshio okamoto, athushi ootani, yasuhiro tanaka; A Comparative Study of Phacoemulsification With the OZil-Intelligent Phaco(IP) handpiece and OZil handpiece:retrospective clinical study. Invest. Ophthalmol. Vis. Sci. 2012;53(14):6642.
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© ARVO (1962-2015); The Authors (2016-present)
To compare the intraoperative and short-term postoperative outcomes of cataract surgery performed with the OZil-IP handpiece and OZil handpiece using the Infiniti Vision System(Alcon)
In this retrospective clinical study. 862eyes were assigned to Phacoemulsification With the OZil-IP or OZil. All surgery was perfomed by the same experienced surgeon with a standard phaco chop technique using the Infiniti Vision System. The outcome measures were US time(UST),cumulative dissipated energy(CDE) .Postoperative outocome measures were endothelial cell loss(ECL),was evaluated as follows:ECL=(preoperative cell count-postoperative cell count)/preoperative cell countx100%.
The OZil-IP group had 441 eyes and tha OZil group ,421 eyes.In the eyes with nucleus density grades of 1,2,3,4,5,the mean US time was 20.6seconds±6.9(SD), 45.1±16.0seconds, 69.9±21.5seconds, 99.9±32.5seconds,respectively,in the OZil-IP group and 15.2±9.3seconds, 45.3±13.3seconds,67.9±17.6seconds,127.5±31.4seconds,163.7±78.6seconds,respectively,in the OZil group(P<0.01); the mean CDE was2.6±2.4, 11.7±4.8, 18.5±5.8, 31.2±11.1,54.9±11.6,respectively,in the OZil-IP group and 3.4±2.8, 14.1±4.5,23.3±6.8,37.3±10.9,70.7±35.6,respectively,in the OZil group(P<0.01).At 30days , ECL was 2.9%±1.9%, 3.7%±2.5%, 4.3%±6.3%, 7.1%±7.4%,9.3%±6.9%,respectively,in the OZil-IP group and 3.5%±2.1%, 3.9%±2.9%, 4.6%±2.8%, 8.14%±8.2%,11.42%±5.6%,respectively,in the OZil group(P<0.01)
Phacoemulsification With the OZil-Intelligent Phaco(IP) handpiece showed superior efficiency and less endothelial cell loss for Hard Cataracts,as compared With the OZil handpiece.
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