Implantation of bifocal intraocular optical system (BIOS): preliminary results

Session Details

Session Title: Presented Poster Session: Enlarged Depth of Focus vs Multifocal IOLs

Venue: Poster Village: Pod 1

First Author: : S.Kuznetsov RUSSIA

Co Author(s): :    R. Galeev                       

Abstract Details

Purpose:

Analysis of the clinical results in implantation of the BIOS.

Setting:

¹Department of Ophthalmology, Penza Institute for Further Training of Physicians – Branch Campus of the Federal State Budgetary Educational Institution of Further Professional Education «Russian Medical Academy of Continuing Professional Education» of the Ministry of Healthcare of the Russian Federation, Penza. ²The Penza Regional Eye Hospital, Penza, Russian Federation.

Methods:

BIOS consisting of two intraocular plate torsion haptic lenses (PTHIOL), (open bag device) made of hydrophobic acrylic. The basic PTHIOL providing the correction for the far distance, and of an additional PTHIOL providing the correction for near distance with a central small aperture hole. In 9 patients (10 eyes) the PHACO was performed with implantation of BIOS. Both PTHIOLs are located in the CB perpendicularly and without contacting each other. The follow-up was from 10 months to 2.5 years. The postoperative examination included a determination of UCVAD and UCVAN, as well as the BIOS position using UBM after 1-3-6-12-24 months.

Results:

All operations were carried out without complications. The UCVAD at discharge was 0.7 to 1.0, mean 0.87±0.12. The UCVAN allowed not to use additional correction in all cases. The IOP was at average 19.7±2.42mmHg. The target refraction ±0.5D was achieved in all cases. According to the UBM data, the implants were in the correct position in the CB. No CB fibrosis, folds and opacification of the posterior capsule were noted. In one case, there was an episodic appearance of a light halo.

Conclusions:

The results of the BIOS implantation showed its safety. The efficiency of the BIOS was confirmed to ensure a simultaneous correction of aphakia both for the far and near distance, as well as the maintenance of the CB form and prevention of its fibrosis. The open CB and the absence of contact between the PTIOLs allow the one-stage or delayed additional correction of pseudophakic presbyopia or refractive error during implantation PTHIOL. No authors has a financial or proprietary interest in any material or method mentioned.

Financial Disclosure:

None