ArticleBMC ophthalmology2022
Digital versus slit-beam marking for toric intraocular lenses in cataract surgery.
Article in BMC ophthalmology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07176897 (Refractive Accuracy of Toric Intraocular Lens Implantation Using Digital Marking Compared to Conventional Marking), which is not on this map. Cited by 6 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.
Refractive Accuracy of Toric Intraocular Lens Implantation Using Digital Marking Compared to Conventional Marking
Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Digital marking versus manual marking technique for toric intraocular lens alignment: a meta-analysis.BMC ophthalmology · 2025Pooled it
- Comparing toric intraocular lens alignment: intraoperative image-guided system versus manual marking in cataract surgery: a randomized clinical trial.International ophthalmology · 2025Trial
- Comparative accuracy of image-guided systems and smartphone applications for enhanced monofocal toric IOL alignment in cataract surgery.International ophthalmology · 2026Article
- Intraoperative Degree Misalignment in Toric Intraocular Lens Implantation When Using Conventional Compared to Digital Marking.Clinical ophthalmology (Auckland, N.Z.) · 2026Article
- The Feasibility and Clinical Evaluation of an Immersive Augmented Reality Surgical Headset Integrated with Swept-Source Intraoperative Optical Coherence Tomography for Ophthalmic Surgery in the DISCOVER Study.Diagnostics (Basel, Switzerland) · 2025Article
- Comparison of two digital alignment systems for toric intraocular lens implantation.BMJ open ophthalmology · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
purposeTo compare the visual outcomes of digital and slit-beam manual marking for toric intraocular lenses (IOL) in cataract surgery.
settingSingle-center, Beijing Tongren Hospital, China.
designRetrospective study.
methodsAll patients with cataracts and regular corneal astigmatism greater than 0.75 diopters (D) underwent cataract surgery and astigmatism correction between June 2019 and June 2020. To mark the target axis of the toric IOL and the location of the incision, intraoperative digital marking was used by Callisto eye image-guided system in one group, while preoperative manual slit-beam marking was used in the other group. Uncorrected and best-corrected spectacle visual acuity, refraction, toric IOL axis, total higher order aberrations, coma, spherical aberration, and trefoil were evaluated at 1, 4, and 12 weeks postoperatively.
resultsSeventy-two eyes of 58 patients were included. At 3 months after surgery, the mean residual refractive cylinder was 0.42 ± 0.45D in the digital group and 0.39 ± 0.40D in the manual group (P = 0.844). There were no significant differences between groups in spherical equivalent refraction, uncorrected and best-corrected spectacle visual acuity, or the parameters of vector analysis. All toric IOL alignment errors were within 10° of the intended axis, and among them, about 42% of eyes in the digital group and 61% of eyes in the manual group had a rotation of 0-2° (P = 0.038). Trefoil in the manual group decreased postoperatively compared with the digital group (P = 0.012). Other aberration analyses did not reveal any statistical differences between groups.
conclusionsAccurate slit-beam manual marking and digital image-guided marking are equally effective for toric IOL alignment.
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