Intracorneal ring implantation using Intralase® with partial coverage of the cone in a patient after an alkaline injury

Cakir H., Asli Utine C., BAYKARA M.

Clinical Ophthalmology, vol.5, no.1, pp.1631-1635, 2011 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 5 Issue: 1
  • Publication Date: 2011
  • Journal Name: Clinical Ophthalmology
  • Journal Indexes: Scopus
  • Page Numbers: pp.1631-1635
  • Keywords: Alkali burn, Ectasia, Intrastromal corneal ring segments
  • Bursa Uludag University Affiliated: Yes


Purpose: To report the use of intracorneal ring segment (ICRS) implantation in a case of severe corneal thinning and irregularity secondary to alkali burn. Case report: A 33-year-old man who had a history of ocular alkali burn in the right eye was admitted. His best corrected visual acuity was 0.16 with manifest refraction of +5.00 (-7.00 × 180°). Orbscan II® revealed steepening of.53 D superiorly, excessive thinning inferiorly with thinnest pachymetric reading of 269 μm. Two KeraRing® segments, 200 μm thick and 90° arced, were implanted. During intrastromal channel creation by Intralase®, the inferior half of the applanating cone was covered by a gelatinous paper to prevent the penetration of the laser beam into the anterior chamber. In the first year postoperation, best corrected visual acuity was 0.7 with manifest refraction of +1.50 (-3.50 × 35°). Visante® opticial coherence tomography displayed ICRS at a depth of ~370 μm. Conclusion: ICRS implantation with this novel approach may be an option in eyes with severe corneal irregularity and thinning. © 2011 Cakir et al, publisher and licensee Dove Medical Press Ltd.