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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


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


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


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.


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).


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

Financial Interest:


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