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The analysis of the effectiveness of IOL pneumocompression at phacoemulsification

Poster Details

First Author: A.Egorova RUSSIA

Co Author(s):    A. Vasiliev              

Abstract Details


The absence of adequate full contact between intraocular lens (IOL) and posterior capsule (PC) decreases the functional result of cataract surgical treatment due to high risk of PC opacification development and increases the number of aberrations. So, the purpose of our work was to analyze the effectiveness of IOL pneumocompression at phacoemulsification (PE) for providing the optimal contact between intraocular lens and PC.


The work was performed in Khabarovsk affiliation of Eye Microsurgery complex named after acad. S.Fyodorov, Russia.


84 pseudophakic eyes of 84 patients, who underwent PE with MIOL-2 (“Reper”, Russia) implantation, were observed All eyes were divided into 3 groups depending on technical peculiarities of finishing stage. The 1-st group (28 eyes) had standard conclusion of operation. The 2-nd group (28 eyes) had compression of IOL to PC with irrigation or aspiration cannula. 28 eyes (3-rd group) had air injection into anterior chamber, additional compression of IOL to the PC with spatula, and exchange of air on BSS. The degree of contact between IOL and PC was performed using biomicroscopy and Pentacam on the first day postoperatively.


Micro cavities between IOL and PC and PC rugosity were found in 25 eyes (89%) using biomicroscopy and in 28 eyes using Pentacam in the1-st group, and in 18 eyes (64%) and 25 eyes (89%) in the 2-nd group, correspondingly. Although the full contact between IOL and PC had place biomicroscopically in all eyes of 3-rd group, Pentacam showed the full adjacency of IOL to PC in 26 eyes (93%), 2 eyes (7%) had micro cavities in examined space. The feature of the operation in the 3-rd group was visual outflow of viscoelastic remains from under IOL at pneumocompression.


The performed analysis showed that proposed method of pneumocompression allows providing full adjacency of IOL optic part to the posterior capsule in 93% of eyes in the 3-rd group in contrast to 11% of eyes of the 2-nd group, and incomplete contact between intraocular lens and PC in all eyes of the first group. The reason of absence of full contact between IOL and PC can be the presence of viscoelastic remains, which is removed qualitatively at pneumocompression. FINANCIAL DISCLOUSRE: NONE

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