ArticleIranian Red Crescent medical journal2015
Full-Ring Intracorneal Implantation in Corneas With Pellucid Marginal Degeneration.
Article in Iranian Red Crescent medical journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 1 paper, 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed, 1 synthesis or guideline pooled it, 3 citations in OpenAlex.
- Efficacy of complete rings (MyoRing) in treatment of Keratoconus: a systematic review and meta-analysis.International ophthalmology · 2019Pooled it
Corrections and comments
- Retraction · 2016-03-03Criminal Proceedings · False/Forged Authorship · Compromised Peer Review · Investigation by Company/Institution · Investigation by Journal/Publisher · Misconduct - Official Investigation(s) and/or Finding(s) · Misconduct by Author ·
- RetractedRetraction Note.2016
Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundKeratoconus (KCN) is a progressive, non-inflammatory ectacic disorder characterized by bilateral and asymmetrical conical protrusion of the cornea. MyoRing implantation and Collagen Crosslink (CXL) are two separate effective treatments for all stages of keratoconous. This study wants to show the effect of these treatments combination in patients with moderate and severe keratoconus.
objectivesThe aim of this study was to report on the visual and refractive outcomes of corneas with pellucid marginal degeneration following MyoRing implantation (DIOPTEX GmbH). PATIENTS AND
methodsThis study included 15 eyes of 15 patients, with an age range from 22 to 49 years old, and pellucid marginal degeneration. An intrastromal corneal ring (MyoRing) was inserted by the means of mechanical dissection using a PocketMaker microkeratome. The main outcome measures were uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), manifest refraction, and keratometry readings. The mean postoperative follow-up was ten months (range 6 - 12 months).
resultsThe mean UDVA (LogMAR) improved significantly from 1.13 ± 0.21 preoperatively to 0.24 ± 0.13 postoperatively (P < 0.001), and the mean CDVA (LogMAR) improved significantly from 0.39 ± 0.12 to 0.19 ± 0.09 (P < 0.001). The mean cylinder of manifest refraction decreased significantly by 4.00 diopter (D) (P < 0.001). The mean spherical equivalent error (SE) decreased significantly from -6.00 ± 3.60 D to -0.70 ± 1.90 D, at the end of the follow-up period. Furthermore, with regards to corneal topography, a significant reduction was observed in keratometric values. The Kmax, Kmin and Kaverage decreased significantly by 5.00, 1.10 and 4.00 D, respectively (P < 0.001).
conclusionsMyoRing implantation using the PocketMaker microkeratome appears to provide an effective method for treating pellucid marginal degeneration. Both UDVA and CDVA improved significantly. The corneal steepening and astigmatism were reduced in all subjects after MyoRing implantation.
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