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Quality of vision analysis with rotational asymmetric multifocal intraocular lenses (MIOL) with an addition of +1.5D, comparison of different target refraction

Poster Details

First Author: K.Klabe GERMANY

Co Author(s):    D. Breyer   H. Kaymak   P. Hagen   A. Fricke   F. Kretz   G. Auffarth     

Abstract Details

Purpose:

Due to different optical designs, the results of contrast sensitivity, photopsia as well as visual acuity in intermediate distance improved significantly by comparing segmental and trifocal MIOLs to classic bifocal MIOLs. The aim of this study was to evaluate patients visual comfort (less halo and glare, smooth even defocus curve, better contrast sensitivity) by implanting the (toric) Comfort MIOL (Oculentis) in both eyes targeting Emmetropia or MIOL blended vision.

Setting:

We retrospectively analyzed 80 patients after implantation of either MIOL with +1.5D Add. targeting for Emmetropia in both eyes or MIOL blended vision by targeting for Emmetropia in the dominant and targeting for -1.5D in the non dominant eye. All MIOL implantations were performed at the Breyer-Kaymak-Klabe Augenchirurgie, Duesseldorf.

Methods:

Results of subjective refraction as well as visual acuity at far, intermediate and near distance were documented. Additionally we analzyed the binocular defocus curves between 33 cm (-3.0 D) and infinity (0.0 D) and compared the area under the respective curves to those of phakic juvenile patients of our patient population as well to other current MIOL designs. Halo and glare was assessed with a computer based system. Contrast sensitivity was assesed with the Ginsburg box.

Results:

Compared to phakic juvenile eyes, patients with the ”emmetropic variant” showed a binocular defocus capacity of up to 74%. Patients assessed with the +1.5D blended vision showed a binocular defocus capacity of up to 85%. Photopsia were absent in all cases after three month. Contrast vision was better than in other bi- or trifocal MIOLs and was close to phakic juvenile patients. Subjectively we think that the blended vision patients needed more time (about three months) for complete neuroadaption in comparison to the emmetropic patients (about one month).

Conclusions:

Rotation assymmetrical segmental MIOL with a near addition of +1.5D are suitable for patients who don´t want to wear progressive glasses after cataract or clear lens surgery and dont accept halo and glare or a failure of neuroadaptation. Usually those patients only need reading glasses for newspaper reading in dim light conditions (emmetropic variant) or for small print (blended vision).

Financial Disclosure:

One or more of the authors receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented, One or more of the authors travel has been funded, fully or partially, by a competing company, One or more of the authors travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented, One or more of the authors receives consulting fees, retainer, or contract payments from a competing company

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