Related Experiment Video
Updated: Aug 18, 2026
Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
Published on: September 20, 2024
[Functional results with two multifocal intraocular lenses (MIOL). Array SA40 versus Acri.Twin]
U Mester1, P Dillinger, N Anterist
1Augenklinik der Bundesknappschaft, Sulzbach/Saar. sek-augen@kksulzbach.de
Background:
A multifocal intraocular lens (MIOL) with diffractive and aspherical optical design and asymmetrical light distribution (Acri. Twin, Acri.Tec) was compared to the standard MIOL, the Array SA40.
Patients And Methods:
After 6 months, 16 patients with bilateral implantation of the Acri. Twin and 14 patients with bilateral Array IOL were examined to assess uncorrected and best corrected visual acuity for distance and near, contrast sensitivity under photopic and mesopic conditions, stereopsis, pupil diameter, and centration of the IOL.
Results:
A significant difference was observed between the two MIOL in improved near visual acuity of the Acri. Twin MIOL (0.8 vs 0.4). Most of the patients described dysphotic phenomena, which were somewhat different for both MIOL, but expressed general satisfaction except for one patient. Concerning contrast sensitivity both MIOL were significantly inferior to data published for an aspherical monofocal IOL.
