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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

Purpose:

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.

Setting:

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

Methods:

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.

Results:

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.

Conclusions:

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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