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Does suturing a monofocal intraocular lens to an aritifical iris influence its optical performance?

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First Author: H.Son GERMANY

Co Author(s):    C. Mayer   G. Labuz   R. Khoramnia   T. Yildirim   G. Auffarth        

Abstract Details

Purpose:

ArtificialIris (ArtificialIris, HumanOptics AG, Erlangen, Germany) has been introduced as a functional and cosmetic treatment option for patients with aniridia. Numerous studies have reported its beneficial outcomes and it is generally sutured to a monofocal intraocular lens (IOL) if cataract is also present. This study evaluated whether the suturing of a monofocal IOL to the ArtificialIris has an influence on its optical performance.

Setting:

The David J. Apple International Laboratory for Ocular Pathology, University Eye Clinic Heidelberg, Germany

Methods:

The optical quality of three hydrophilic ASPIRA (HumanOptics AG, Erlangen, Germany) IOL models with different base powers, +10,0D (IOL A), +20,0D (IOL B), and +30,0D (IOL C), was first measured in terms of modulation transfer function (MTF) values using an optical bench (OptiSpheric® IOL Pro II, Trioptics, Wedel, Germany) at a pupil size of 3.0mm and spatial frequency of 100lp/mm. Then, the optical performance was measured again after the IOLs were sutured to an ArtificialIris. Also, the degree of IOL decentration in relation to the center of the ArtificialIris was measured.

Results:

The mean MTF values at baseline were 0,603, 0,654, and 0,631 for IOLs A, B, and C, respectively. After suturing to the ArtificialIris, the mean MTF values were 0,524, 0,540, and 0,554 for IOLs A, B, and C, respectively. The mean values of lens decentration in vertical direction were 0,20 mm, 0,00 mm, and 0,02 mm for IOLs A, B, and C, respectively. In horizontal direction, the mean lens decentration values were 0,42 mm, 0,10 mm, and 0,03 mm for IOLs A, B, and C, respectively.

Conclusions:

As expected, the MTF values of the monofocal IOLs decreased slightly after they were sutured to the ArtificialIris. The differences, however, are practically irrelevant in a clinical scenario. If so, multifocal IOLs may also be considered as an option in combination with the ArtificialIris. However, further laboratory studies are necessary to verify its viability.

Financial Disclosure:

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