Comparative Assessment of Implantation of Bifocal Diffractiverefractive and Monofocal Intraocular Lenses

Abstract

ABSTRACT Purpose To assess the functional results of implantation of bifocal diffractiverefractive and monofocal lenses. Material and methods Long-term visual functions in patients with bifocal diffractive-refractive lenses (MIOL-Accord, AcrySof Restor ®) and monofocal lens (MIOL-2) were examined. Postop refraction, distance and near visual acuity, visual acuity at low-contrast values and contrast sensitivity were evaluated. Results Distance visual acuity in patients with MIOL-Accord and AcrySof Restor® did not differ from the visual acuity in patients with MIOL-2. Uncorrected and corrected near visual acuity was better in eyes with diffractive lenses. Visual acuity at low-contrast values and with glare, contrast sensitivity in patients with diffractive lenses were comparable (p>0,05), but were slight lower than those with the monofocal lens. Conclusion Despite different design the bifocal diffractive-refractive lenses MIOLAccord and AcrySof Restor® provided comparable postop visual functions. Uncorrected near visual acuity in patients with the multifocal lens was better than in monofocal patients. Uncorrected distance vision show comparable results in multifocal and monofocal patients. Visual acuity at low-contrast values and contrast sensitivity with glare in patients with diffractive lenses were slight lower than with the monofocal lens.