[After-cataract following intraocular lens implantation. Part I. Genesis and prevention by optimizing conventional lens implants and surgical techniques].
After-cataract is the most common complication in cataract surgery. Implementing a sharp posterior optic edge has, together with improved cortical aspiration, drastically reduced its rate. The impact of optic design and material has been systematically studied in detail in Vienna in a series of prospectively randomized intra-individual comparison studies using objective evaluation methods. Circular rhexis-optic overlap is essential for the durability of the posterior sharp optic edge barrier effect. Using haptics with a capsular bag design and a slim junction to the optic enhanced it further. The use of fibrosis-inducing optic materials has been shown to prolong the barrier effect, which was decreased after anterior capsule polishing. Although the incidence of clinically significant after-cataract has been significantly reduced by these conventional measures, it still cannot be completely avoided.
Menapace
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Universitätsklinik für Augenheilkunde und Optometrie, AKH-Wien, Währinger Gürtel 18-20, 1090 Wien, Osterreich. rupert.menapace@meduniwien.ac.at
D002386:Cataract / Q000209:etiology* / Q000517:prevention & control*; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000009:adverse effects* / Q000379:methods; D007910:Lenses, Intraocular / Q000009:adverse effects*; D017410:Practice Guidelines as Topic; D010818:Practice Patterns, Physicians'; D016896:Treatment Outcome