Astigmatic Results of a Diffractive Trifocal IOL Following Intraoperative Aberrometry (IA) Guidance | ASCRS
Presentation
Astigmatic Results of a Diffractive Trifocal IOL Following Intraoperative Aberrometry (IA) Guidance
May 2020
Meeting: 2020 Virtual Annual Meeting
Session: SPS-108 Trifocal IOLs
Author: John F. Blaylock, MD
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Purpose
To determine if intraoperative guidance improves astigmatic outcomes for trifocal toric IOL implantation.

Methods
Retrospective study examining 46 eyes of 23 consecutive patients implanted with a trifocal IOL (PanOptix: Alcon Vision) in cases involving IA (ORA System with VerfiEye+). Cylinder power was determined by IA. Postop UDVA and subjective refraction findings to determine Postop Residual Astigmatism (PRA) were collected at 3 months.

Results
Interim results show the following: 93% of eyes had PRA ≤ 0.50D. Cylinder power was changed in 61% of cases based upon IA. Back calculating using the preop cylinder power, 70% of the cases would have had PRA ≤ 0.50D (p=0.002). Mean PRA was 0.08D±0.25 for IA and 0.42D±0.41 for the back calculation (p=0.008). Cumulative post-op monocular UDVA (LogMAR): 63% 0.0 or better, 78% 0.1 or better, 100% 0.18 or better. Mean post-op monocular UDVA: 0.027±0.10.

Conclusion
In this study, the proportion of eyes with PRA ≤0.50D and mean PRA was lower using IA versus the pre-operative planned cylinder power, demonstrating that cylinder power selection is more accurate following IA recommendation.
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This presentation is from the session "SPS-108 Trifocal IOLs" from the 2020 ASCRS Virtual Annual Meeting held on May 16-17, 2020.

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