Visual function after bilateral implantation of a new zonal refractive aspheric multifocal intraocular lens.
OBJECTIVE
To evaluate visual function after bilateral implantation of a zonal refractive aspheric multifocal intraocular lens (IOL).


METHODS
Private practice surgery center, Valencia, Spain.


METHODS
Cohort study.


METHODS
Consecutive eyes with cataract had bilateral implantation of Lentis Mplus LS-312 multifocal IOLs. Distance, intermediate, and near visual acuities; contrast sensitivity; defocus curves; and a quality-of-vision questionnaire, including presence of halos or dysphotopsia, were evaluated 6 months postoperatively. A control group of age-matched monofocal pseudophakic patients was included to compare contrast sensitivity function.


RESULTS
In the multifocal group, the mean binocular corrected distance visual acuity (logMAR) was -0.04 ± 0.07 at 6 m, 0.11 ± 0.10 at 1 m, and 0.06 ± 0.07 at 40 cm. The defocus curve showed little intermediate vision drop off. Photopic contrast sensitivity for distance was similar to the monofocal IOL contrast sensitivity function, while photopic contrast sensitivity for near and mesopic contrast sensitivity for distance with or without glare was reduced at high frequencies. The mean patient satisfaction was 8.09 ± 1.30 (scale 0 to 10); 84.4% of patients were completely independent of spectacles. Moderate halos, glare, and night-vision problems were reported by 6.2%, 12.5%, and 15.6% of patients, respectively.


CONCLUSIONS
The new-generation multifocal IOL provided adequate distance, intermediate, and, to a lesser extent, near vision with high rates of spectacle freedom. Halos occurred, and other photic phenomena should be expected in a small percentage of patients.


BACKGROUND
No author has a financial or proprietary interest in any material or method mentioned.
Refractive Surgery Department, Clínica Oftalmológica Marqués de Sotelo, University of Valencia, Valencia, Spain. gon.munoz@ono.com
Gonzalo
G
Muñoz
César
C
Albarrán-Diego
Teresa
T
Ferrer-Blasco
Hani F
HF
Sakla
Santiago
S
García-Lázaro
D000368:Aged; D015331:Cohort Studies; D015350:Contrast Sensitivity / Q000502:physiology*; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D011446:Prospective Studies; D011474:Prosthesis Design; D019591:Pseudophakia / Q000503:physiopathology*; D011788:Quality of Life; D011795:Surveys and Questionnaires; D014786:Vision Disorders / Q000503:physiopathology; D015348:Vision, Binocular / Q000502:physiology*; D014792:Visual Acuity / Q000502:physiology*