Abstract

P 172

Evaluation of the stability of an intraocular lens for microincision technique – a long time follow-up

Schäferhoff C.¹, Hammer T.², Sel S.², Wilhelm F.¹, Werschnik C.^1
1Augenklinik der HELIOS Kliniken Schwerin; ²Augenklinik der Martin-Luther-Universität Halle-Wittenberg, Halle/Saale

Objective: The phacoemulsification as the gold standard procedure in the modern cataract surgery demands smaller incisions. Therefore suitable lenses are needed. The first lens available in Germany which could be implanted via a paracentesis was the Acri.Smart 48 S lens. The implantation over such a small incision requires thinner lenses but this includes the problem of reduced stability. Therefore the aim of this study was to determine the stability of the foldable and hydrophobic lens Acri.Smart 48 S by measuring the position of the lens after surgery.
Methods: In 20 patients an Acri.Smart lens was implanted via 1.7 mm paracentesis after bimanual phacoemulsification. After three years the position of the IOL was measured by retroilluminescent photography and the tilt of lens by the slitlamp images using the Pentacam Scheimpflug camera (Oculus, Pentacam system). Change of corneal astigmatism was verified by IOL-Master (Zeiss) and keratometer (Topcon).
Results: In all 20 patients there was no substantial decentration or tilt. Also the change of the corneal astigmatism was not significant.
Conclusions: The hydrophobic lens Acri.Smart maintains a stable and central position in the capsular bag. This could be shown using retroilluminescence photography and using a Scheimpflug camera. Therefore the Acri.Smart lens can be used for implantation over paracentesis after phacoemulsification. The microincisions technique in cataract surgery decreases the induction of corneal astigmatism.

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