Posters

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

Purpose:

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.

Setting:

Hayashi Eye Hospital, Fukuoka, Japan.

Methods:

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.

Results:

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).

Conclusions:

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.

Financial Disclosure:

NONE