Implantation of a Complete Corneal Ring in an Intrastromal Pocket for Keratoconus

Abstract

the corneal intrastromal implantation system using a complete ring implanted in a stromal pocket can achieve significant improvements in the visual function of patients with keratoconus. Uncorrected distance visual acuity improved by more than seven lines on average and CDVA improved by two lines.

Implantation of a Complete Intrastromal Corneal Ring at 2 Different Stromal Depths in Keratoconus

“…[1][2][3]5 We believe that despite the stability of variables during the 1-year follow-up, a longer period of follow-up is required to confirm if the MyoRing can decelerate the progression of keratoconus. [1][2][3]5 We believe that despite the stability of variables during the 1-year follow-up, a longer period of follow-up is required to confirm if the MyoRing can decelerate the progression of keratoconus.…”

MyoRing for Central and Noncentral Keratoconus

“…8 The development of a new technology and a new surgical approach (corneal intrastromal implantation system -CISIS), consisting of a safe and very easy to use high precission microkeratome for the creation of corneal pockets (PocketMaker microkeratome, Dioptex GmbH, Austria) and a new kind of continous ring implant (MyoRing, Dioptex GmbH, Austria) having two a-priori conflicting features, such as rigidity and flexibility allows, however, a safe and effective treatment of myopia, keratoconus and post-LASIK keratectasia. [9][10][11][12] The PocketMaker microkeratome consists of an ultrathin micron-guided diamond blade with extremely high cutting precission which exceeds that of a femtosecond laser, in particular if the cutting is performed in the deep cornea (i.e. 300 microns and more).…”

Outcome of Keratoconus Management: Review of the Past 20 Years' Contemporary Treatment Modalities

“…74,75 An improvement in the corneal shape manifested as an improvement in inferior-superior corneal symmetry and centralization of the corneal apex has been reported. 67,[76][77][78] However, Alio et al, 79 in their retrospective study with longer follow-up (36-48 months), showed that ICRS implantation is incapable of maintaining the initial corneal flattening effect. In their series, the eyes implanted with ICRS showed a progressive increase in keratometry reading from 6 to 36 months.…”