ArticleClinical ophthalmology (Auckland, N.Z.)2024
Evaluation of Visual Outcomes, Postoperative Angle Alpha, and Angle Kappa After Implantation of Isofocal Intraocular Lenses.
Article in Clinical ophthalmology (Auckland, N.Z.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed.
- Comparative analysis of preoperative and postoperative changes in photopic and mesopic angle kappa and angle alpha in cataract surgery.BMC ophthalmology · 2026Article
- Exploring the interplay between chord α and chord μ, pyramidal wavefront aberrometry, and ocular biometric indices in preoperative refractive surgery candidates.International ophthalmology · 2025Article
- Replacing Theories with Evidence Around the Axes of the Eye in Intraocular Lens Selection: A Review for the Clinician.Ophthalmology and therapy · 2025Review
- Visual and Refractive Outcomes After Implantation of an Isofocal Optic-Design Intraocular Lens with Double C-Loop Haptics in Japanese Eyes.Clinical ophthalmology (Auckland, N.Z.) · 2025Article
- Clinical Outcomes of a Multicenter Study Following Implantation of an Isofocal Optic IOL with Double C-Loop Haptics.Clinical ophthalmology (Auckland, N.Z.) · 2025Article
- Objective Depth-of-Focus Estimation from Wavefront Measurements After Implantation of an Isofocal Intraocular Lens.Clinical ophthalmology (Auckland, N.Z.) · 2025Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: To evaluate the effect of angles kappa and alpha on the visual outcomes after implantation of isofocal intraocular lens (IOL) during cataract surgery. Methods: This prospective study involved 66 eyes undergoing cataract surgery with Isopure IOLs. Exclusion criteria comprised irregular corneal astigmatism exceeding 1.0D, and ocular co-morbidities affecting visual outcomes post-surgery. Evaluation parameters included postoperative refraction, uncorrected and corrected-distance visual acuity (UDVA, CDVA), uncorrected intermediate visual acuity (UIVA), and distance-corrected intermediate visual acuity (DCIVA) at 80 cm. Additionally, postoperative angles alpha, kappa, and wavefront aberrations at a 3-mm pupil using ray tracing were assessed post-surgery at least 60 days later. Results: Patients had a mean age of 64.48 ± 9.92 years. Mean postoperative manifest refraction spherical equivalent (MRSE) was -0.21 ± 0.27 D. Mean UDVA and CDVA were LogMAR 0.06 ± 0.04 and 0.02 ± 0.06, respectively. Mean UIVA LogMAR 0.32 ± 0.08 while mean DCIVA was LogMAR 0.29 ± 0.08. Postoperative angles kappa and alpha were 0.39 ± 0.14 mm and 0.45 ± 0.15 mm, respectively. Mean postoperative ocular RMS higher-order aberrations (HOAs) 0.23 ± 0.08. Spherical aberration, coma, and trefoil averaged 0.05 ± 0.07, 0.12 ± 0.03, and 0.07 ± 0.03, respectively. No significant correlations were observed between postoperative angle kappa and alpha with UDVA, CDVA, or HOAs. A non-significant weak positive correlation was noted between angle kappa and UIVA/DCIVA, while no correlation was found between angle alpha and UIVA/DCIVA. Conclusion: No substantial correlations were found between various postoperative angles kappa and alpha values and postoperative visual acuity metrics (UDVA, CDVA, UIVA, and DCIVA) or higher order ocular aberrations (including, spherical aberration, coma, and trefoil with a 3.0 mm diameter) in pseudophakic eyes implanted with isofocal intraocular lenses (IOLs).
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