MICROINVASIVE TRANSSCLERAL FIXATION TECHNOLOGY OF THE FOLDABLE IOL

The purpose: The development of micro invasive scleral fixation technology of the foldable IOL, the evaluation of its efficiency, reliability and security.

Patients and Methods. The study was conducted in a group of 196 patients (201 eyes). Micro invasive scleral fixation technique of the flexible IOL was used in secondary IOL implantatiоn in aphakic eyes, reimplantation elastic IOL, and in challenging clinical situations in phacoemulsification. The IOL implantation was performed through a corneal incision of 2.2–2.75 mm by using the injector. Used IOL made of hydrophilic acryl (Rayner). For fixation the threads of the suture PC-9 to the IOL haptic elements have them flashing. Transscleral puncture ab interno was performed in 3.0 mm from the limbus without conductors. For fixation to the sclera used many-tier self-submersible knot without incisions and sutures on conjunctiva and the sclera. To achieve the target refraction the optical power of the IOLs was decreased by 1.0–1.5 D from the calculated.

Results. In almost all cases, was obtained a reliable fixation of the IOL without significant tilting optics and decentration. The target refraction was achieved in 90% of cases. The percentage of lost endothelial cells ranged from 1.6 to 3.8 %,with an average value of 2.2%. In 8 cases after transscleral puncture there were small hemorrhages. Transient hypertension of varying severity occurred in 22 cases. In 3 cases there was a dislocation of the IOL due to the eruption of one of the many-tier self-submersible knot through the sclera. Partial externalization many-tier knot via the conjunctiva was noted in 5 cases.

Conclusion. The presented technology scleral fixation flexible IOL is a simple, reliable and micro-invasive. Using the selected IOL models with the flashing of its haptics elements ensures reliable fixation and centration. Injection implantation allows the use of a small incision of 2.2 mm. The many-tier self-submersible knot eliminates the need for incisions and sutures for conjunctiva and the sclera. If you make the necessary amendments refractive outcome is reliably predictable. The percentage of complications specific for scleral fixation of small.

scleral fixation of IOL, secondary IOL implantation, aphakia without capsular support, subluxation of the lens

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