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Contrast vision of multifocal intraocular lenses using hybrid (diffractive-refractive) optics with different near additions

Poster Details

First Author: T.Brockmann GERMANY

Co Author(s):    P. Arani   A. Pham   N. Torun   C. von Sonnleithner   E. Bertelmann        

Abstract Details


To evaluate contrast vision of hybrid (refractive-diffractive) multifocal intraocular lenses (MIOL) with different near additions.


In this prospective interventional clinical trial 60 eyes (30 patients) underwent cataract surgery with MIOL implantation in order to restore near and distance vision. Exclusion criteria were, among others, vision-limiting comorbidities and preceded intraocular surgery.


Three apodized bifocal hybrid IOLs with different near additions were compared: �.50 diopters (D) (SV25-type ReSTOR, Alcon; 15 eyes), �.00 D (SN6A-type ReSTOR, Alcon; 15 eyes) and �.50 D (Diff-aAY, HumanOptics; 30 eyes). Subjective refraction, monocular uncorrected visual acuity (VA) and monocular distance-corrected visual acuity were assessed in the far, intermediate and near, under mesopic conditions with high- and low-contrast, and glare. Contrast sensitivities (CS) were evaluated under mesopic and scotopic conditions, and glare. Examinations were accomplished preoperatively; and 1 day, 1 month and 3 months postoperative between March 2013 and May 2017.


All groups revealed uncorrected distance VAs of 20/20 Snellen equivalents, or better. Distinctions were revealed for corrected distance VAs; hybrid optics with a lower addition were superior to those with higher additions. Vice versa, intermediate and near VAs were superior in MIOLs with higher additions. Regarding high- and low-contrast mesopic VAs, differences between the groups were insignificant. The investigation of mesopic and scotopic CSs; and of mesopic CS with glare revealed an impact of the present near additions; best results were obtained with lower additions.


Apodized hybrid MIOL with different near additions provide excellent distance and near vision. Yet, the choice of the specific near addition may determine to attain a high CS and distance VA, but slightly reduced near VA; or a high near and distance VAs, but slightly reduced CS.

Financial Disclosure:

research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented, travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented

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