Resumen de Visual outcomes following implantation of a multifocal toric intraocular lens in patients with corneal astigmatism
PURPOSE: To assess visual acuity (VA) and refractive outcomes following implantation of a multifocal toric intraocular lens (IOL) in patients with corneal astigmatism (> 0.75 D).
SETTING: OftalmoCentro, Porto Alegre, Brazil.
METHODS: In this consecutive case series, patients underwent phacoemulsification and bilateral or unilateral IOL implantation with the M-flex T IOL (Rayner Intraocular Lenses Ltd.).
All underwent refractive assessment and corneal topography preoperatively and postoperatively.
Outcome measures included uncorrected distance VA, spherical and cylindrical refraction, and spherical equivalent (SE) (3-month follow-up).
RESULTS: Of 43 eyes (29 patients, mean age 57 years [35–89 years], 12 males), 15 patients underwent bilateral implantation of a Rayner M-flex® T IOL, while 14 had unilateral M-flex T implantation with a non-toric multifocal IOL in the fellow eye. There was a clinically and statistically significant improvement in spherical refraction (1.71 ± 2.40 D preoperative;
0.05 ± 0.20 D postoperative; p < 0.001), cylindrical refraction (−1.36 ± 2.00 D; −0.30 ± 0.70 D;
p < 0.001), and SE (1.03 ± 2.50; −0.09 ± 0.40 D; p = 0.003). Eighty-eight percent of eyes were within ± 0.5 D of emmetropia, and 88% had a cylindrical correction within ± 0.5 D. At 3 months, 95% and 91% of eyes had uncorrected distance and near VA of 20/30 or better and J2 or better, respectively.
CONCLUSION: The M-flex T IOL improved spherical and cylindrical refractive error in patients with corneal astigmatism undergoing lens extraction, while providing a full range of vision correction.
