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Combined implantation of diffractive multifocal intraocular lenses with different addition power

Poster Details

First Author: K.Hayashi JAPAN

Co Author(s):    M. Yoshida   A. Hirata   K. Yoshimura              

Abstract Details


To compare short-term binocular visual function between patients implanted with diffractive multifocal intraocular lenses (MIOLs) of different near addition powers in each eye or the same MIOLs bilaterally.


Hayashi Eye Hospital, Fukuoka, Japan.


Seventy patients scheduled for implantation of diffractive MIOLs were divided into two groups: A) combined group, a MIOL with +3.0 diopter (D) addition power implanted in the dominant eye (Alcon SN60D1) and a MIOL with +4.0D power implanted in the nondominant eye (SN60D3), or B) same MIOL group, same MIOL (SN60D1) implanted bilaterally. At 3 months postoperatively, we examined binocular visual acuity (VA) at far to near distances, binocular contrast VA and that with a glare (glare VA), and near stereoacuity.


Mean binocular uncorrected (UNVA) or corrected near VA (CNVA) at 0.3m was significantly better in the combined group than in the same MIOL group (P≤0.0066). Binocular uncorrected and distance-corrected VA at other distances was similar. Binocular UNVA of 0.8 or better was achieved in 77.1% of patients in the combined group and 45.7% in the same MIOL group (P=0.0144). Binocular contrast and glare VA, and stereoacuity did not significantly differ between groups. Spectacle independency and patient satisfaction for near vision were significantly better in the combined group (P≤0.0195).


Combined implantation of diffractive MIOLs with different near addition power provides a better binocular VA curve and spectacle independency than bilateral implantation of the same MIOLs, without compromising contrast sensitivity and stereoacuity.

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