RT Journal Article
T1 Biometric Factors Associated with the Visual Performance of a High Addition Multifocal Intraocular Lens.
A1 Fernández, Joaquín
A1 Rodríguez-Vallejo, Manuel
A1 Martínez, Javier
A1 Tauste, Ana
A1 Piñero, David P
K1 Multifocal intraocular lens
K1 corneal power
K1 effective addition
K1 lens centration
K1 visual acuity defocus curves
AB Purpose/Aim: To evaluate the impact of ocular parameters on the visual performance achieved with the multifocal intraocular lens (IOL) Bi-Flex M 677MY. About 26 subjects were included in the current study. Several physiological variables were retrieved from the 3-month follow-up visit, including pupil diameter and distance from pupil center to the vertex normal of the anterior cornea (µ). These variables were also obtained in the preoperative visit. Binocular and monocular visual acuity defocus curves were measured at 1 and 3 months after surgery, respectively. The monocular Area Under the Curve (AUC) was computed along the total range (Total Area Under the Curve (TAUC), +1.00 to -4.00 D) and for the ranges of Far (Far Area Under the Curve (FAUC), +0.50 to -0.50 D), (Intermediate Area Under the Curve (IAUC), -1.00 to -1.50 D) and Near vision (Near Area Under the Curve (NAUC), -2.00 to -4.00 D). Correlations between these areas and the postoperative physiological variables were assessed. The mean µ was reduced from 0.21 to 0.10 mm after surgery, as well as pupil diameters, either photopic (-7.4%) or mesopic (-8.1%) (p  The visual performance at near distance with the IOL evaluated improved in eyes with less corneal power. On the other hand, a slight temporal IOL decentration from vertex normal also improved intermediate visual acuity. The binocular defocus curve was similar to other trifocal IOLs.
YR 2018
FD 2018-05-30
LK http://hdl.handle.net/10668/12486
UL http://hdl.handle.net/10668/12486
LA en
DS RISalud
RD Apr 17, 2025