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Session Title: Multifocal Technology and Comparative studies
Session Date/Time: Tuesday 08/10/2013 | 08:00-10:30
Paper Time: 10:15
Venue: Auditorium (First Floor)
First Author: : K.Hayashi JAPAN
Co Author(s): : H. Turu M. Yoshida K. Yoshimura
To compare binocular visual function between patients with unilateral cataract after monocular implantation of a multifocal intraocular lens (IOL) and those after monocular implantation of a monofocal IOL
Hayashi Eye Hospital, Fukuoka, Japan
Thirty patients, aged 40 to 70 years, with unilateral cataract scheduled for implantation of a diffractive multifocal IOL and 30 age-matched patients scheduled for implantation of a monofocal IOL were recruited. At 3 months postoperatively, binocular visual acuity from far to near distances, binocular photopic or mesopic high- to low contrast visual acuity (contrast VA) and that with a glare (glare VA), and stereoacuity were examined.
Mean binocular uncorrected (UNVA) or corrected near visual acuity (CNVA) at 0.3 m and uncorrected (UIVA) or corrected intermediate visual acuity (CIVA) at 0.5 m were significantly better in the multifocal group than in the monofocal group (P?0.0196), although there was no significant difference in uncorrected or corrected visual acuity at other distances. Binocular photopic contrast VA and glare VA at low-contrasts and mesopic glare VA were significantly worse in the multifocal group than in the monofocal group (P?0.0147). Near stereoacuity was similar between groups. Spectacle independence was better in the multifocal group than in the monofocal group (P?0.0006).
Monocular implantation of a diffractive multifocal IOL in patients with unilateral cataract provides better binocular near and intermediate visual acuity, and spectacle independence than does monocular implantation of a monofocal IOL, although distance contrast sensitivity is worse with the multifocal IOL.
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