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Outcomes of a multicentric study comparing bilateral bifocal implantation with mix-and-match option

Poster Details

First Author: B.Jihen TUNISIA

Co Author(s):    C. Monia   R. Tanneguy   T. Liem   D. Serge   L. Francois   K. Laurent     

Abstract Details


to compare the depth of focus provided by a shift of 0.5D in the addition of bifocal IOLs.


Hospital Habib Thameur, Ophthalmology Department,Tunis, Tunisia, Centre Vision Bretagne, Vannes, France, Hôpital des XV-XX, Paris, France, Fondation Rothschild, Paris, France, Hôpital universitaire de Rennes, Rennes, France, Reims, France


in this controlled trial, 35 patients were rather implanted with bilateral +3D bifocal IOLs (group 1) or with a mix and match +2.5D/+3D bifocal IOLs (group 2). Monocular and binocular, uncorrected and distance-corrected visual acuity at 4m, 60 cm and 40 cm were screened as well as monocular and binocular distance corrected defocus curve, contrast sensitivity and overall patient satisfaction.


One site met 3 complications : one TASS, one eye with IOL deposits and one decentration. The 3 complications were successfully solved. The distance-corrected visual acuity at far, intermediate and near was respectively -0.02±0.9, 0.11±0.16 and 0.13±0.09 in group 1 and -0.01±0.04, 0.05±0.15 and 0.13±0.09 in group 2. Both IOL gave contrast sensitivity in the range of the population age. We could not discriminate a situation where one of the two groups had better outcomes. Nevertheless, the combination of +2.5D/+3D seems to provide better intermediate vision in objective and subjective tests.


At the time of trifocality, mix and match with high energy peaks remains a good option for surgeons who want to be sure to achieve sharp vision from 60 cm to 40 cm.

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