Multifocal toric IOL outperforms peripheral corneal relaxing incisions, standard multifocal
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Both a multifocal toric IOL and a non-toric multifocal IOL combined with peripheral corneal relaxing incisions reduced astigmatism, but the toric IOL demonstrated several advantages, according to study results.
The prospective, randomized, controlled clinical trial included 30 patients with visually significant cataracts and 1 D to 2.5 D of corneal astigmatism who received a multifocal toric IOL in one eye and a non-toric multifocal IOL combined with one or two peripheral corneal relaxing incisions (PCRIs) in the fellow eye.
Target postoperative refraction was emmetropia to up to 0.25 D of hyperopia. The primary outcome measures were visual acuity, astigmatic vector reduction, digital toric IOL axis determination, spectacle dependence and patient satisfaction.
Study results showed that at 3 months, mean residual refractive astigmatism was 0.45 D in the toric IOL group and 0.72 D in the PCRI group.
Mean uncorrected distance visual acuity was 0.10 in the toric IOL group and 0.15 in the PCRI group, and mean uncorrected near visual acuity was 0.43 in the toric IOL group and 0.39 in the PCRI group, according to the researchers.
The researchers observed a mean absolute misalignment of the intended axis of 2.52°, and toric IOL rotation was within 3° in 90.9% of cases and within 6° in all cases.
A questionnaire showed that 52.9% of patients needed spectacles only when reading for an extended time, according to the researchers.
Disclosure: The authors have no relevant financial disclosures.