Intermediate visual function with different multifocal intraocular lens models. - Instituto Oftalmológico Fernández-Vega

Intermediate visual function with different multifocal intraocular lens models.

01/05/2010
To compare visual acuity at different distances after bilateral implantation of 1 of 4 multifocal intraocular lenses
AUTHORS.
Alfonso JF, Fernández-Vega L, Puchades C, Montés-Micó R.

PURPOSE.
To compare visual acuity at different distances after bilateral implantation of 1 of 4 multifocal intraocular lenses (IOLs).

SETTING.
Fernández-Vega Ophthalmological Institute, Oviedo, Spain.

METHODS.
This study evaluated consecutive patients who had bilateral implantation of a spherical multifocal IOL with a +4.00 diopter (D) addition (add) (AcrySof ReSTOR SN60D3) or an aspheric multifocal IOL with a +4.00 D add (AcrySof ReSTOR SN6AD3), +3.75 D add (Acri.LISA 366D), or +3.00 D add (AcrySof ReSTOR SN6AD1). Six months postoperatively, binocular measurement of corrected distance visual acuity (CDVA) at 4 m, corrected near visual acuity (CNVA) at 40 cm, and corrected intermediate visual acuity (CIVA) at 50, 60, 70, and 80 cm were performed; the defocus curve was also measured.

RESULTS.
Each IOL model was implanted in 20 eyes (10 patients). All IOL models resulted in good distance vision, with no statistically significant differences between models. Patients with the +3.00 aspheric IOL had statistically better binocular CIVA at 50, 60, and 70 cm (P<.0001) and binocular CNVA at 40 cm (P = 3 x 10(-3)) than patients with the other IOL models.

CONCLUSION.
Patients with bilateral multifocal aspheric IOLs with a lower add had better intermediate and distance near visual acuity than patients with bilateral multifocal spherical IOLs or bilateral aspheric IOLs with a higher add.

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