Posters

Comparison of visual performance of two different extended depth-of-focus (EDOF) IOLs

Poster Details

First Author: H.Zwickl AUSTRIA

Co Author(s): M. Ruiß   J. Hienert   N. Hirschall   O. Findl           

Abstract Details

Purpose:

Enhanced depth of focus (EDOF) lenses have an extended far focus area which reaches to the intermediate distance, providing high-quality vision over a continuous range of focus. An option to improve the contrast in the intermediate and near distance is a mix-and-match-system, in which IOL additions between both eyes differ. To preserve binocular balance it would be necessary to provide an IOL with a continuum of good visual acuity from distance to near.

Setting:

Vienna Institute for Research in Ocular Surgery (VIROS), Department of Ophthalmology, Hanusch Hospital, Vienna, Austria

Methods:

This randomised controlled trial compares a new EDOF IOL (ARTIS SYMBIOSE Mid and Plus, Cristalens, France), which is designed as a twinset of IOLs, with a standard EDOF lens (AT Lara IOL, Zeiss, Germany). The ARTIS SYMBIOSE has a new diffractive IOL concept which is based on the complementarity between both lenses and the continuum of phase. Exclusion criteria include pupil abnormalities, any measurement compromising ophthalmic diseases or incompatibility with multifocality. Follow-ups will be performed 1 week after each cataract surgery as well as 1–2 months and 6 months after the second surgery.

Results:

56 eyes of 28 patients, who are scheduled for cataract surgery are included in this study. Preliminary data of seven patients shows good BCDVA in both groups postoperatively. Disphotopsia evaluation using the Aston Halometer offers mean radius of obscuration of 0,91° (min. 0,6°/max. 1,3°) with the ARTIS SYMBIOSE and 1,33° (min. 1,1°/max. 1,7°) with the Zeiss AT Lara. Defocus curves show median visual acuity of 0,0 (min. -0,1/max. 0,0) logMAR at 0 diopters and 0,1 (min. 0,0/max. 0,5) logMAR at -2,5 diopters. The recruitment is still ongoing, further results will be presented at the ESCRS meeting.

Conclusions:

Preliminary data shows good visual acuity in the distance and in the intermediate vision with the ARTIS SYMBIOSE while halos are comparable to a standard EDOF IOL. Further data will be presented at the ESCRS in Marrakech which can highlight a possible superiority of the ARTIS SYMBIOSE in near vision compared to a standard EDOF IOL.

Financial Disclosure:

... receives consulting fees, retainer, or contract payments from a competing company, ... research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented