Topographic pilot study of a new presbyopia inlay concept

Session Details

Session Title: Presbyopia Management

Session Date/Time: Sunday 08/10/2017 | 16:30-18:00

Paper Time: 16:36

Venue: Room 2.1

First Author: : A.Daxer AUSTRIA

Co Author(s): :                        

Abstract Details

Purpose:

The optical path in the case of corneal presbyopia inlays either involve the interfaces between inlay and tissue or these interfaces surround the small optical pathway narrowly. Since presbyopia inlays are located in the corneal center, tissue reaction at these interfaces can be a serious vision threatening condition via interface haze formation. The presented new inlay concept for presbyopia avoids involvement of the inlay in an optical interface and creates a central multi-focal near-vision zone via shifting tissue in the surrounding of the tiny inlay.

Setting:

GutSehen Eye Center, Ybbs, Austria and Department of Ophthalmology, Medical University of Innsbruck, Austria.

Methods:

After acceptance by the responsible board and signing informed consent a multi-focal cornea inlay (MFCI) (DIOPTEX GmbH, Austria) have been inserted into the corneal center inside an almost entirely closed corneal pocket in 3 eyes of patients suffering from high-grade amblyopia. The spherically shaped inlays were made from pure gold and had a diameter between 0.28 mm and 0.32 mm. The corneal pockets were created at 240 microns and 340 microns by means of the PocketMaker Ultrakeratome (DIOPTEX GmbH, Austria). The topography were performed by means of Pentacam imaging (OCULUS GmbH, Germany).

Results:

In all cases a central near-vision zone of approximately 2 mm in diameter was created. One week after surgery the near-vision additions achieved were 0.5 Diopters (D), 2.5 D and 8 D, respectively. No intra-operative or post-operative complication occurred.

Conclusions:

These preliminary data demonstrate the possibility to create a topographically sufficient central near-vision addition for presbyopia treatment by this new presbyopia inlay concept. Once the quantitative clinical relation between the combination of inlay diameter and implantation depth and the combination of near-vision addition and diameter of the central multi-focal zone is available further studies are required to evaluate the visual performance.

Financial Disclosure:

has significant investment interest in a company producing, developing or supplying product or procedure presented