Bilateral implantation a novel nondiffractive extended-vision toric intraocular lens (IOL), provides excellent visual performance for far and intermediate distance and functional near vision in patients with significant cataracts and significant corneal astigmatism undergoing uncomplicated cataract surgery, according to real-world data published in the Canadian Journal of Ophthalmology. This IOL also offers excellent rotational stability for astigmatism correction and patient-reported visual disturbances were low, according to the report.
This noncomparative cohort study included 40 eyes from 20 patients (mean age, 70.9 years; 14 women, 6 men) with significant cataracts and corneal astigmatism who underwent immediate sequential bilateral cataract surgery with the nondiffractive extended-vision toric IOL, the AcrySof IQ Vivity Extended Vision Lens (Alcon).
All participants received a full ophthalmic evaluation including the assessment of binocular uncorrected visual acuities (UCVA) and monocular best-corrected visual acuities (BCVA) at distance (6 m), intermediate (66 cm), and near (40 cm) 1 week and 3 months after nondiffractive extended-vision toric IOL implantation.
The researchers report that the binocular distance, intermediate, and near UCVAs (mean±SD) were 0.00±0.16, 0.09±0.08, and 0.14±0.11 logMAR at 1 week and 0.01±0.06, 0.08±0.08, and 0.14±0.07 logMAR at 3 months postoperatively, respectively.
They report that the distance monocular BCVA improved from 0.22±0.23 logMAR preoperatively to 0.02±0.06 logMAR at 3 months. They report that the monocular BCVAs at 3 months were 0.08±0.08 logMAR at intermediate distance and 0.05±0.08 logMAR at near distance.
The researchers also evaluated the rotational stability of the nondiffractive extended-vision toric IOLs at 1 day, 1 week, and 3 months postoperatively. They used a validated Questionnaire for Visual Disturbances (QUVID) for patient-reported subjective visual disturbances preoperatively at the 3-month follow-up.
The nondiffractive extended-vision toric IOL’s rotation from the intended placement axis was 2.5±1.7 degrees at 1 week and 1.7±1.7 degrees at 3 months postoperatively, the report shows.
“Overall, all 20 patients reported that they were satisfied with their visual outcomes and desired no further surgery,” according to the researchers. “Bilateral implantation of the AcrySof IQ Vivity Extended Vision toric IOL in participants with significant corneal astigmatism undergoing uncomplicated cataract surgery offered an excellent visual performance for far and intermediate distance as well as functional near vision. The rotational stability of the IOL was excellent, and patient-reported visual disturbances were low.”
Study limitations include the relatively small sample size, single center design, single surgeon methodology. Observer bias may have influenced some results.
Disclosure: One study author declared affiliations with biotech, pharmaceutical, and/or device companies. Please see the original reference for a full list of disclosures.
Nguyen MTD, Yuan PH, Bachour K, Sierra MCA, Durr GM. Visual outcomes and rotational stability of a new non-diffractive extended-vision toric intraocular lens. Can J Ophthalmol. Published online June 12, 2023. doi:10.1016/j.jcjo.2023.05.010