Accuracy of Astigmatism Correction with Toric Intraocular Lens Implantation in Eyes with Prior Radial Keratotomy | ASCRS
Presentation
Accuracy of Astigmatism Correction with Toric Intraocular Lens Implantation in Eyes with Prior Radial Keratotomy
May 2020
Meeting: 2020 Virtual Annual Meeting
Session: SPS-110 Post Refractive Surgery - IOL Calculations
Authors: Ana Laura C. Canedo, MD, Douglas Koch MD, Li Wang MD, PhD
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Purpose
To evaluate refractive outcomes of toric intraocular lens (IOL) implantation in eyes with previous radial keratotomy (RK).

Methods
Toric IOLs were implanted in 72 eyes. The same surgeon performed each operation. The Lenstar LS900 (Haag-Streit AG) was used in this study. Implanted IOLs were either the Alcon lenses (SN6ATx series, Fort Worth, TX, USA) or the Johnson & Johnson Vision lenses (ZCTxxx series, Santa Ana, CA, USA). Vector analysis was performed, and we compared preoperative corneal astigmatism to postoperative refractive astigmatism.

Results
Preoperatively, 1% and 8% of eyes had corneal astigmatism ≤0.5 D and ≤1.0 D, and postoperatively 69% and 83% of eyes had refractive astigmatism ≤0.5 D and ≤1.0 D, respectively (P<0.05). The centroid values were 0.93 D @ 1° ± 2.02 D preoperatively and 0.17 D @ 168° ± 0.68 D postoperatively (P<0.05).

Conclusion
Toric IOLs can be successfully used to treat corneal astigmatism in RK eyes.
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This presentation is from the session "SPS-110 Post Refractive Surgery - IOL Calculations" from the 2020 ASCRS Virtual Annual Meeting held on May 16-17, 2020.

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