Abstract
Purpose: To compare the results of Intacs with Kerarings when used in combination with collagen cross-linking for the treatment of keratoconus Setting: Queen Victoria Hospital, East Grinstead, UK Design: Retrospective case series Methods: A retrospective review of the case notes of keratoconic patients treated with a combination of collagen cross-linking and a intra-stromal corneal ring segments. The pre and post-operative visual acuities and topographical measurements were recorded. Results: Both types of ring segment were associated with an improvement in visual acuities and topographical measurements. The average improvement in unaided acuity was 0.12 LogMar in the Intacs cases and 0.14 LogMar in the Keraring cases. The results in cases in which intacs were used were better than those for Kerarings but this did not reach statistical significance. There were more post operative complications in the intacs group. Conclusion: Collagen cross-linking combined with intra-stromal corneal ring segments is an effective treatment for the early stages of keratoconus. There were no significant differences in the results of intacs cases compared to kerarings.
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