Prospective study of the Acri.LISA bifocal intraocular lens
Accepted 26 June 2007.
Purpose
To assess the visual results after bilateral implantation of the bifocal Acri.LISA 366D intraocular lens (IOL) (Acri.Tec AG).
Setting
Fernández-Vega Ophthalmological Institute, Oviedo, Spain.
Methods
Eighty-one patients had bilateral implantation of the distance-dominant bifocal Acri.LISA 366D IOL in a prospective study. Monocular and binocular best corrected distance visual acuity and best distance-corrected near visual acuity, binocular best distance-corrected intermediate visual acuity, and distance contrast sensitivity under photopic (85 cd/m2) and mesopic (5 cd/m2) conditions were determined.
Results
At the 3-month postoperative visit, the mean binocular best corrected distance acuity was 0.048 ± 0.111 logMAR and the mean binocular best distance-corrected near acuity, 0.012 ± 0.0084 logMAR (both approximately 20/20). The mean binocular best distance-corrected intermediate acuity changed significantly as a function of the distance of the test, from 0.012 ± 0.084 logMAR (approximately 20/20) at 33 cm to 0.265 ± 0.099 logMAR (approximately 20/40) at 70 cm (P<.01). Contrast sensitivity was within normal limits under photopic and mesopic conditions. Binocular contrast sensitivity was statistically significantly better than monocular contrast sensitivity at all spatial frequencies under both illumination levels (P<.01).
Conclusion
The Acri.LISA 366D IOL provided a satisfactory full range of vision; a high level of uncorrected and corrected distance, intermediate, and near acuity; and improved contrast sensitivity under photopic and mesopic conditions.
From the Fernández-Vega Ophthalmological Institute (Alfonso, Fernández-Vega, Señaris) and the Surgery Department (Alfonso, Fernández-Vega), School of Medicine, University of Oviedo, Oviedo, and the Optics Department (Montés-Micó), Faculty of Physics, University of Valencia, Valencia, Spain
Corresponding author: José F. Alfonso, MD, PhD, Instituto Oftalmológico Fernández-Vega, Avenida Dres. Fernández-Vega 34, 33012, Oviedo, Spain.
No author has a financial or proprietary interest in any material or method mentioned.
ABSTRACT