Clarification of interrelations between implanted intraocular lenses of various materials and options of opacity formation in the posterior capsule after phacoemulsification of senile cataract

    ABSTRACT

    

    Clarification of interrelations between implanted intraocular lenses of various materials and options of opacity formation in the posterior capsule after phacoemulsification of senile cataract

    

    Y.A. Tereshchenko1, E.L. Sorokin1, 2, Y.V. Belonozhenko1

    

    1 The Khabarovsk Branch of the S. Fyodorov Eye Microsurgery Federal State Institution, Khabarovsk, Russia;
2 The Far-Eastern State Medical University, Khabarovsk, Russia

    

    Purpose. Clarification of clinical features in a formation of secondary cataract in the implantation of intraocular lenses (IOL) made of various materials (hydrophylic hydrogel, hydrophylic acryle, hydrophobic acryle) after the phacoemulsification (PE) of senile cataract.

    Material and methods. Three groups of patients (30 individuals in each), previously operated by the PE method for senile cataracts (the group 1 – hydrophylic acrylic IOL: «Hanita B-Lens», «Rayner»; the group 2 – hydrogel IOL: «Acreos Adapt»; the group 3 – hydrophobic acrylic IOL: «AcriSof Natural») were studied. Then, in various terms they underwent a YAG discission of posterior capsule because of lenticular opacity. Age of patients: 71±4.2 years, 32 males, 58 females. The PE was carried out by a standard technique.

    Results and discussion. In the group 1 the proliferative type of opacity in the posterior capsule prevailed in 14 eyes; the fibrous type of degree I-III was revealed in 7 eyes; their combination – in 9 eyes. In the group 2 the proliferative type prevailed in 16 eyes; the fibrous type of degrees I-III was detected in 8 eyes; their combination – in 6 eyes. In the group 3 the fibrous type (only degrees I-II) prevailed in 26 eyes (87%); the proliferative type – in 2 eyes; their combination – in 2 eyes. It was noted that the degree III of posterior capsule opacity was not formed in any cases of the group 3.

    Conclusion. The proliferative type of secondary cataract had statistically significant difference for hydrophylic acrylic and hydrophylic hydrogel IOLs; the fibrous type – for hydrophobic acrylic IOLs. Duration of opacity formation in the posterior capsule was higher in the implantation using IOLs made of hydrophobic materials.

    Key words: intraocular lens implantation, cataract phacoemulsification, secondary cataract, types of opacities in the posterior of lens.

    No author has a financial or proprietary interest in any material or method mentioned.