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Evaluation of a novel intraoperative toric intraocular lens alignment system using augmented reality

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Session Details

Session Title: Moderated Poster Session : Cataract - Cataract Surgery Equipment/ Instruments/ Surgical Devices/ OVDs

Session Date/Time: Tuesday 08/09/2015 | 14:00-15:00

Paper Time: 14:30

Venue: Poster Village: Pod 1

First Author: : R.Varsits AUSTRIA

Co Author(s): :    P. Nguyen   N. Hirnschall   O. Findl        

Abstract Details

Purpose:

To evaluate a dedicated operating microscope with augmented reality technology to allow intra-operative toric intraocular lens (IOL) alignment without pre-operative corneal marking.

Setting:

Vienna Institute for Research in Ocular Surgery, Department of Ophthalmology, Hanusch Hospital, Vienna

Methods:

Consecutive patients who were scheduled for cataract surgery were included in this study. A novel operating microscope was used for cataract surgery that allowed superposition of a display onto the live image in one eyepiece. An automated matching of limbal vessels from pre-operative photographs taken with a modified IOL-Master 500 was used to track and follow the eye during surgery (OPMI Lumera 700 and Callisto Eye, Carl Zeiss Meditec AG, Germany). Post-operative IOL rotational alignment and rhexis size were assessed from standardised retroillumination photographs taken one hour after surgery.

Results:

In total, 50 eyes of 50 patients were included. No adverse events were reported and feasibility of the intra-operative marking was high. Deviation between the post-operative and aimed toric IOL axis was 1.91° (SD: 4.12) and absolute deviation was 3.97° (SD: 1.35).

Conclusions:

Intra-operative alignment of the IOL axis is an accurate and fast procedure resulting in precise toric IOL alignment.

Financial Interest:

NONE

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