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. 2022 Jul 1:16:2129-2136.
doi: 10.2147/OPTH.S370061. eCollection 2022.

Refractive Outcomes Following Trifocal Intraocular Lens Implantation in Post-Myopic LASIK and PRK Eyes

John F Blaylock  1 , Brad J Hall  2
Affiliations

Refractive Outcomes Following Trifocal Intraocular Lens Implantation in Post-Myopic LASIK and PRK Eyes

John F Blaylock et al. Clin Ophthalmol. .

Abstract

Purpose: To assess refractive outcomes of a trifocal intraocular lens (IOL) in post-myopic laser refractive surgery eyes.

Methods: This was a retrospective chart review of 35 eyes (21 patients), with history of laser refractive surgery, who were implanted with a trifocal IOL. Surgeon's standard procedure included femtosecond laser (FLACS), digital registration, and intraoperative aberrometry (IA). The primary outcome measure was absolute prediction error. Secondary measures were refractive outcomes, postoperative residual astigmatism (PRA), monocular uncorrected visual acuity at distance (UDVA; 4m), intermediate (UIVA; 60cm), and near (UNVA; 40cm), and monocular best-corrected visual acuity at distance (BCVA; 4m).

Results: At 3 months postoperatively, 71% and 68% of eyes had absolute prediction error 0.5 D or less with IA and preoperative planning respectively, which was not statistically significant (p > 0.05). The PRA was 0.5 D or less in 91% of eyes with IA and 56% of eyes with preoperative planning. The PRA differences between IA and preoperative planning were statistically significant (p < 0.002). The percentage of eyes 20/20 or better for monocular UCVA, BCVA, UIVA, and UNVA was 29%, 77%, 78%, and 66%, respectively. Absolute prediction error 0.5 D or less was significantly higher in post-LASIK eyes versus post-PRK eyes (p < 0.003), at 85% and 56% of eyes, respectively.

Conclusion: Implantation with a trifocal IOL can provide acceptable refractive and visual outcomes with minimal residual astigmatism in post-myopic LASIK and PRK eyes.

Keywords: PanOptix IOL; cataract surgery; intraoperative aberrometry; post-refractive.

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Conflict of interest statement

Dr John F Blaylock reports grants from Alcon Canada, during the conduct of the study; personal fees from Alcon Canada, outside the submitted work; Dr Brad J Hall reports personal fees from Valley Laser Eye Centre, during the conduct of the study; personal fees from Ace Vision Group, outside the submitted work. The authors report no other conflicts of interest in this work.

Figures

Figure 1
Figure 1
Postoperative refractive outcomes: (A) Spherical equivalent refraction, (B) Refractive astigmatism, (C) Target-induced astigmatism vs surgically induced astigmatism, and (D) Refractive astigmatism angle of error.
Figure 2
Figure 2
Histogram of the postoperative absolute refractive prediction errors (n=31).
Figure 3
Figure 3
Histogram of the postoperative residual astigmatism (n=34).
Figure 4
Figure 4
Double angle vector plots of astigmatism vectors for (A) Preoperative, (B) Intraoperative aberrometry, and (C) Preoperative planned power. Each ring represents 0.5 D. The diamond represents the centroid.
See this image and copyright information in PMC

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