The evaluation of intrastromal MyoRing implantation with corneal collagen cross‐linking in keratoconus treatment

PurposeTo evaluate functional results of MyoRing implantation with corneal collagen cross‐linking for progressive keratoconus and to find differences in clinical outcomes between the group after Myoring implantation and the group after combined procedure.MethodsThe corneal MyoRing implantation with corneal collagen cross‐linking was performed in 71 eyes with progressive keratoconus of the II‐III disease degree according to the Amsler classification. MyoRings were implanted using a Pocketmaker keratome. Saturation of the cornea was performed with 0.1% riboflavin within 10–15 min. UV irradiation was done after implantation of Myoring for 30 min. Mean thickness of the cornea at the thinnest point was 478 μm. The follow‐up period was 24 months.ResultsUCVA increased from 0.10 ± 0.06 to 0.39 ± 0.21, in the first day after surgery. Refractive power of the cornea decreased from 51.85 ± 5.57 D to 44.55 ± 5.89 D. The spheroeqivalent (SE) preoperatively decreased from −7.79 ± 3.59 D to 0.14 ± 2.92 D. Dynamic observation after 24 months showed stabilization of clinical and functional results. UCVA was 0.50 ± 0.28, Keratometry – 45.53 ± 4.08 D and SE was −1.80 ± 2.98 D.ConclusionsCombination of CXL and MyoRing implantation can be an effective approach for keratoconus treatment by providing visual rehabilitation. Intrastromal corneal MyoRing implantation with corneal collagen cross‐linking allows correct not only the keratoconus followed ametropia but also to slow down the progression of the disease.