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Evaluation of a new aberrometer in measuring high order aberrations in eyes implanted with presbyopia-correcting IOLs

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Session Details

Session Title: Pseudophakic IOLs: Toric, Multifocal, Accommodative

Session Date/Time: Monday 09/10/2017 | 14:30-16:00

Paper Time: 15:28

Venue: Room 4.1

First Author: : F.Carones ITALY

Co Author(s): :    L. Vigo                    

Abstract Details


Current technology for presbyopia-correcting IOLs (PCIOL) involves either diffractive, echelette, zonal refractive, or positive/negative spherical aberration optical designs. The Purpose of this study was to test a new aberrometer in measuring high order aberrations patterns generated by different models of PCIOLs.


Carones Ophthalmology Center (private eye care clinic), Milan, Italy


We evaluated 120 eyes of 60 patients who were implanted with 5 different models of PCIOL; Alcon AcrySof ReSTOR 3.0 (diffractive bifocal), Alcon AcrySof 2.5 (diffractive bifocal), Alcon PanOptix (diffractive trifocal, Abbott Medical Optics Symfony (diffractive echelette extended depth of focus), and SIFI MiniWell (positive/negative spherical aberration extended depth of focus). Only non-toric IOLs were considered for this evaluation. Measurements were taken with the Osiris aberrometer (CSO Italy). Thanks to a proprietary technology (PWS) consisting of a pyramidal sensor, this aberrometer can measure up to 45.000 data points over the maximum pupillary diameter.


The aberrometer was able to detect the different optical designs in all eyes. More in details, for all tested PCIOL models, HOA analysis allowed to: 1) detect the central area and the optical discontinuities from the diffractive pattern; 2) count the number of the optical discontinuities over the measured area; 3) assess the dioptric value of the add power; 4) measure the size of the positive/negative spherical aberration areas of the MiniWell; 5) detect the elongated focus from the diffractive echelette pattern of the Symfony; 6) identify the 1st order redirection of the light for distance proprietary of the PanOptix.


For all tested IOLs, the information measurable with the Osiris was extremely more detailed than that measurable using other aberrometers based on Shack-Hartmann, Slit-Lamp scanning, or any previous technology. We believe that the Osiris may help researchers and scientists in developing less aberration-generating intraocular lenses, and clinicians have a better understanding of the visual symptoms reported by the patients.

Financial Disclosure:

receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented, receives nonNONEmonetary benefits from a company producing, developing or supplying the product or procedure presented.

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