Trial reportGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2021
The impact of visual axis position on the optical quality after implantation of multifocal intraocular lenses with different asphericity values.
Trial report in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04274088 (The Impact of Visual Axis Position on the Optical Quality After Implantation of Multifocal Intraocular Lenses With Different Asphericity Values), which is not on this map. Cited by 16 papers, 1 of them a synthesis that pooled it.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
The Impact of Visual Axis Position on the Optical Quality After Implantation of Multifocal Intraocular Lenses With Different Asphericity Values
Who cites it
16 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Presbyopia-Correcting Intraocular Lenses Implantation in Eyes After Corneal Refractive Laser Surgery: A Meta-Analysis and Systematic Review.Frontiers in medicine · 2022Pooled it
- Determinants of Pentacam-derived lens density in age-related cataract: the role of ocular dominance and lifestyle factors.BMC ophthalmology · 2026Article
- Analysis of visual quality after implantation of diffractive multifocal intraocular lens Diff - aA in cataract patients.BMC ophthalmology · 2026Article
- The predictive value of the orientation and offset of angle α and angle κ for visual outcomes after trifocal intraocular lens implantation in an Asian cohort.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025Observational
- Replacing Theories with Evidence Around the Axes of the Eye in Intraocular Lens Selection: A Review for the Clinician.Ophthalmology and therapy · 2025Review
- Distribution of Angle Alpha in a Large Population in Eastern China: An Analysis of the 30705 Eyes Using the Ray Tracing Aberrometer.Clinical ophthalmology (Auckland, N.Z.) · 2025Article
- Effect of mydriasis on chord mu value in cataract surgery candidates.European journal of ophthalmology · 2024Article
- The impact of corneal higher-order aberrations on dynamic visual acuity post cataract surgery.Frontiers in neuroscience · 2024Article
- Evaluation of Visual Outcomes, Postoperative Angle Alpha, and Angle Kappa After Implantation of Isofocal Intraocular Lenses.Clinical ophthalmology (Auckland, N.Z.) · 2024Article
- Influence of angle alpha on visual quality after implantation of extended depth of focus intraocular lenses.BMC ophthalmology · 2022Article
- The Influence of Angle Alpha, Angle Kappa, and Optical Aberrations on Visual Outcomes after the Implantation of a High-Addition Trifocal IOL.Journal of clinical medicine · 2022Article
- Visual quality analysis using the Chinese Catquest-9SF scale following different spherical aberration IOL implantation.Frontiers in public health · 2022Observational
- Chord Mu (µ) and Chord Alpha (α) Length Changes in Fuchs Endothelial Corneal Dystrophy before and after Descemet Membrane Endothelial Keratoplasty (DMEK) Surgery.Journal of clinical medicine · 2021Article
- Angle alpha as predictor for improving patient satisfaction with multifocal intraocular lenses?Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021Article
- Combined phacovitrectomy for retinal detachment and cataract-macular attachment and visual fixation as predictors of postoperative refractive error.Therapeutic advances in ophthalmologyArticle
- The relationship between patient satisfaction and visual and optical outcome after bilateral implantation of an extended depth of focus multifocal intraocular lens.Advances in ophthalmology practice and researchArticle
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo evaluate the effect of visual axis positioning on the optical performance of the Tecnis MIOL and the Diff-aA MIOL.
methodsIn this prospective, randomized comparative study, 70 eyes of 35 subjects with senile cataract were implanted with the spherical aberration-correcting diffractive, bifocal Tecnis ZLB00 IOL and 60 eyes of 30 age-matched subjects with the spherical aberration neutral, diffractive, bifocal Diffractiva IOL. Observation procedure was performed 1, 3, and 6 months postoperatively. Main outcome measures included uncorrected and corrected distance and near visual acuity, manifest refraction, ocular aberrations, and visual quality metrics with 2 mm and 4 mm pupil and the position of visual axis.
resultsAt the 6-month visit, no significant difference was found in monocular and binocular uncorrected (UDVA) and corrected (CDVA) distance and near (UNVA, CNVA) visual acuity between the groups. Spherical and coma-like aberrations were similar measured with a 2-mm pupil, but with a 4-mm pupil, the SA was significantly larger (in negative direction) in the Diffractiva group. The higher-order Strehl ratio and MTF was significantly larger in the Diffractiva group measured at 2 mm entrance pupil; however, this difference disappeared by the 4-mm pupil measurements. Postoperative angle alpha distance had a significant influence on HO Strehl value.
conclusionsThe size of angle alpha is a predictive factor of image quality by multifocal IOL patients.
trial registrationTrial registration number and date of registration: NCT04274088, 14.02.2020.
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33471202What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.