{rfName}
Ef

Indexed in

License and use

Citations

12

Altmetrics

Analysis of institutional authors

Gordillo, Carlos HAuthor

Share

Publications
>
Article

Efficacy of Intrastromal Corneal Ring Segments Combined With Flash Collagen Cross-Linking in Keratoconus

Publicated to:CORNEA. 36 (2): 144-147 - 2017-02-01 36(2), DOI: 10.1097/ICO.0000000000001104

Authors: Gordillo, Carlos H.; Grandin, Juan C.; Zaldivar, Roger; Zaldivar, Roberto; Lotfi, Adriana C.;

Affiliations

Inst Zaldivar, Dept Corneal Dis, Emilio Civit 685, RA-5500 Mendoza, Argentina - Author

Abstract

Purpose: To evaluate outcomes, efficacy, and safety of intrastromal corneal ring segment implantation for treatment of keratoconus combined with collagen cross-linking (CXL) with 1-year follow-up.Methods: One hundred nineteen eyes of 82 patients with keratoconus (37 females) underwent femtosecond (Intralase FS; Abbott Medical Optics, Inc) laser-assisted intrastromal corneal ring segment implantation (INTRASEG; Gamma Vision) with flash CXL (18 mW/cm(2) for 5 minutes). The outcome measures were uncorrected distance visual acuity (UDVA), best-corrected distance visual acuity (CDVA), subjective refractive error, keratometry values, and corneal thickness.Results: Mean age of patients at implantation was 31 years (range 12-63, SD 9.5). According to the Amsler-Krumeich scale of keratoconus severity, 62 eyes were type 1 (52%), 43 eyes, type 2 (36%), and 14 eyes, type 3 (11.8%). Statistically significant improvement of UDVA/CDVA and reduction in the mean cylinder and mean keratometry at 1 year were observed. Mean UDVA (logMAR) was 1.11 +/- 0.61 (SD) preoperatively and 0.54 +/- 0.58 (SD) postoperatively (P < 0.001). Mean CDVA was 0.52 +/- 0.18 (SD) preoperatively and was 0.14 +/- 0.17 (P < 0.0001) postoperatively. Preoperative Kmax was 48.75 diopters (D) (range 41.0-55.0 D), and postoperative Kmax was 46.18 D (P < 0.0006); preoperative Kmin was 44.69 D (SD) 3.59 and postoperative Kmin was 43.00 D (SD) 2.53. The mean cylinder was -5.19 D preoperatively (range -0.80 to -8.80 D) and -2.6 D (range -1.00 to -7.25) postoperatively. Mean corneal pachymetry was 486.6 mm (range 391-591). No intraoperative complications occurred. No patient lost any lines of UDVA or CDVA.Conclusions: Implantation of the INTRASEG with the Intralase combined with flash CXL was apparently safe and effective in treatment of keratoconus. The variety of options in thickness and arc length of the segments enables more precise correction of keratoconus and refractive errors.

Keywords

Corneal ring segmentsFemtosecond laserFlash collagen cross-linking for keratoconusImplantationIntacsManagementProgressive keratoconusRiboflavinTerm-follow-up

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal CORNEA due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2017, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Ophthalmology.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 1.94, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jun 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-06-14, the following number of citations:

  • WoS: 4
  • Scopus: 8
  • OpenCitations: 7

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-14:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 32.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 32 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 3.8.
  • The number of mentions on the social network X (formerly Twitter): 5 (Altmetric).

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Argentina.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (GORDILLO VELEZ, CARLOS HUMBERTO) .