Trial reportBMC ophthalmology2021
Objective and subjective evaluation of trifocal diffractive intraocular Lens after cataract extraction with phacoemulsification: a prospective clinical study.
Trial report in BMC ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04465279 (Evaluation of Trifocal Diffractive Intraocular Lens After Cataract Extraction With Phacoemulsification), which is not on this map. Cited by 5 papers.
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.
Evaluation of Trifocal Diffractive Intraocular Lens After Cataract Extraction With Phacoemulsification
Who cites it
5 citing papers in PubMed.
- Advances in cataract surgery: is a new era on the horizon?Current opinion in ophthalmology · 2026Review
- Clinical outcomes with a new diffractive multifocal intraocular lens optimized by the dynamic light utilization algorithm.Eye (London, England) · 2025Observational
- Comparison of visual performance with iTrace analyzer following femtosecond laser-assisted cataract surgery with bilateral implantation of two different trifocal intraocular lenses.International journal of ophthalmology · 2023Article
- Observation of Visual Quality after Femtosecond Laser-Assisted Cataract Surgery Combined with Trifocal Intraocular Lens Implantation.Computational and mathematical methods in medicine · 2022Article
- Visual satisfaction and spectacle independence with monofocal intraocular lens with enhanced intermediate vision and trifocal intraocular lenses in the prepresbyopic age group patients with cataracts.Oman journal of ophthalmologyArticle
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis study aimed to assess visual outcomes, quality of vision and patients' satisfaction of a trifocal diffractive intraocular lens after cataract surgery with phacoemulsification.
resultsThe study included 36 eyes that underwent implantation of trifocal diffractive intraocular lens (IOL). The residual mean postoperative spherical equivalent was - 0.40 ± 0.29 diopters. Mean Uncorrected distance visual acuity was 0.80 ± 0.16 decimal (snellen equivalent 25 ft) while mean Uncorrected intermediate visual acuity was 0.82 ± 0.31 decimal (snellen equivalent 25 ft) and mean Uncorrected near visual acuity (UCNVA) was 0.87 ± 0.20 decimal (snellen equivalent 23 ft). In defocus curve, there was infinitesimal gradual change between the three foci. Contrast sensitivity was just below the inferior limit of normal.
conclusionTrifocal diffractive IOL created a true intermediate focus proved by VA and defocus curve and better quality of vision assessed by contrast sensitivity and high order aberration. Moreover, it was safe and effective for correcting distance and near vision in these patients. Most of the patients were very satisfied and achieved spectacle independence.
trial registrationRegistration number and date: NCT04465279 on July 10, 2020.
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