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Quality of vision analyzed with rotational asymmetric MIOL with an addition of +1.5D. comparison of different target refractions

Poster Details

First Author: K.Klabe GERMANY

Co Author(s):    H. Kaymak   D. Breyer   C. Pohl   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:

Breyer Kaymak Klabe Berliner Allee 15 40212 Duesseldorf Germany

Methods:

We retrospectively analyzed 100 patients after implantation of either MIOL with an addition of +1.5D 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. 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 33cm (-3.0D) 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

Results:

Compared to phaki 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 82%. Reading a newspaper was possible with the blended vision. 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 for complete neuroadaption in comparision to the emmetropic patients.

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 don´t accept halo and glare or a failure of neuroadaptation. Usually those patients only need glasses for newspaper reading in dim light conditions (emmetropic variant) or for small print (blended vision).

Financial Disclosure:

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

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